who can drill a hole in granite

So if youre looking for a durable and long-lasting construction material, consider using granite in your next project. 4. Overall, drilling granite requires careful planning and precision, as well as the appropriate tools and safety equipment. Keep reading to find your answers. Our showroom is open for walk-in visits during our regular business hours. ANOTHER ANGLE. I highly recommend you outsource the drilling process to professionals, as they have all the expertise and proper tools for the job. Privacy PolicyMail: contact@goimprovehome.com, Epoxy Flooring For Homes Cost Guide - Numbers Included. Drilling a hole in granite can be tricky, but with the right tools and techniques it can be done relatively easily. Line up the bit with your marks. Before drilling into granite, you need to be aware of the following: By being aware of the above you can help to avoid any potential problems when drilling into granite. If you really want to do this, drill some practice holes in scrap first. If youre ready to get started, be sure to purchase the right tools and take your time with each step of the process. Drilling through granite isn't complicated if you have the right kind of drill bit, although it's more time-consuming than drilling through wood . The tools need to be strong, sharp and durable to complete drilling without damaging itself. Speed up the drilling at that point. It is then cut into slabs that are between 1 and 4 inches thick. Still in great shape after the cut. Then, use the wet saw to cut a groove around the edge of the hole. When drilling granite, it is important to go slowly and use plenty of water to keep the drill bit cool. The other challenge associated with drilling granite is its tendency to shatter, which can cause damage to both the material and the equipment being used. If you are unsure about how to proceed, it may be best to hire a professional contractor who has experience drilling into granite rock. Key advice here: if you're going to attempt this yourself, don't make your countertop your first experiment. Dry coring Wet coring 4. With the right techniques and equipment, it is possible to drill safe and effective holes in granite for various purposes, from renovating homes to installing plumbing systems in new buildings. Although granite can present some challenges when drilling, it is still a commonly used material for a variety of applications. Diamond core drill bits have a good reputation for drilling through granite with ease; a good one should be able to get through a -inch (1.9 cm) slab in less than a minute. Water is used to cool the drill bit and to flush away the granite chips that are created when the hole is drilled. Drilling a Hole in the Rock. Freein home measurements are also available by calling us at 952-469-5242. Had to drill 1.5" hole in 1.25" thick granite to install an Insinkerator hot water dispenser. Start by cleaning the area and making sure it is completely dry, so there wont be any excess dirt or debris that can get caught in your drill bit. If you would like to see what I did, search for "Thrifty Tani" on youtube. Hi there! I completely agree with you! I have a passion for everything related to tools and DIY projects around the house. (Lowe's, Home Depot, Menard's, etc..) You rub it on, let it set for 20-30 minutes, then wipe off. Keep drilling until the hole is the desired size. Arrange the tape from top to bottom so that the pieces overlap slightly at . While you can make holes in granite with a regular drill (above 350 RPMS) it will take much longer than with a hammer or rotary hammer drill. Thanks for contributing an answer to Home Improvement Stack Exchange! Then, use a damp cloth or sponge to gently wipe away any remaining residue. Use a water soluble glue and test it by trying to knock it loose with a mallet. Alignment, temperature, speed. As you probably won't be drilling a lot of holes in granite beyond these, I recommend that you rent a hammer drill for a day. Can You Drill A Hole Through Quartz Countertop? When handling some technical and demanding projects in your home, it is always best to outsource it to the right professional. Are there breakers which can be triggered by an external signal and have to be reset by hand? Raise the bit for 10 seconds so it whirls in the oil and cools down. Operate the drill at a slow speed first, and keep the bit vertically to the surface of the rock. There are a few . To drill granite, you need a diamond core drill. Are there conservative socialists in the US? Obviously this is cheaper, but can a my standard corded Rigid drill (not VBR or hammer) handle this? Some drill bit manufacturers recommend using water to cool and lubricate the drill bit while drilling. Put on your safety gloves, safety goggles, and protective air mask to avoid serious injuries. 1. You probably know that regular wood or metal drill bits cannot penetrate stones. To drill hole into granite countertop, the tool used is a diamond core drill bit hole saw. @UnhandledExcepSean I just used a diamond hole saw and bit. Free shipping. Granite guys coming tomorrow to install counter and backsplash. What To Keep In Mind. Browse other questions tagged, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site, Learn more about Stack Overflow the company. Application: For drilling granite & marble, masonry, concrete, tile/ceramic, glass, hard plastic. Water keeps the temperature of the granite surface and your granite core drill a bit chilly and invariably lessens the risk of any damage. You can absolutely do this yourself with a powerdrill and 21 dollar diamond hole saw from HD. I recently purchased a 1/2 inch diameter one, cost me about $20, and I drilled a hole through a granite countertop. The feature of diamond core drill bit . Diamond core bits are available in a variety of diameter and height. rev2022.12.9.43105. Be sure to dry the drill hole completely before moving on to your next task or project. Be sure to hold the drill firmly in place while you work, using light pressure that allows you to carefully guide the bit as you go. Drill a scrap piece of glass or stone tile first. Water is used to cool the drill bit and to flush away the granite chips that are created when the hole is drilled. Closed November 24, 25, and 26th in observation of Thanksgiving Holiday. How does legislative oversight work in Switzerland when there is technically no "opposition" in parliament? My name is Jack and I write for ToolsOwner. At Granite Unlimited, Inc., we offer an extensive array of granite countertop options to help you achieve the perfect interior design for your kitchen space. Place the drill bit over your pencil marked point on the rock. Choose a suitable diamond-tipped hole saw. Making statements based on opinion; back them up with references or personal experience. In the following we are going to expand on each of the steps above in more detail to help make your granite drilling experience as smooth as possible. All critical in cutting stone. I ended up not only drilling the faucet hole, but laminated the edge to double the thickness, polished with a diamond pad, and installed an undermount sink. Then, using a wet saw, cut around the perimeter of the marked area. Choose the desired drilling method (dry coring or wet coring). It went fine. Really easy when you get. How can I drill a 2" deep hole, 1/16" in diameter? Tear off several pieces of duct tape and attach them to mark the location for the hole. But it's a kegerator you can extend the hose and put the tap just about anywhere you like, including the backsplash as @mike suggests. You can drill through granite with a spear-point bit for glass -- just drill, no hammer. Not to many people are successful their first time without a pro by their side so good luck! Apply lubricant. Measure to find the location for the hole. To create this article, 9 people, some anonymous, worked to edit and improve it over time. Drilling into stone without using a hammer drill can be done in two ways. Diamonds are the hardest natural material on Earth, so these drill bits can stand up to a lot of wear and tear. For a simple home project, investing in those expensive tools might not be ideal. The drill bit must also be long enough to extend through the thickness of the granite stone. How could my characters be tricked into thinking they are on Mars? When you put wet clothes in the dryer, they will not dry properly and may start to smell bad. Counter-intuitively applying more pressure (lots more) rather than less for the first 1/16 will get you a cleaner start with a handheld drill. If you dont use water, you can have someone use a shop vac to vacuum the granite dust as you drill. Additionally, it is advisable to wear safety glasses and a dust mask while drilling to protect your eyes and lungs from flying debris. Repeat drilling and raising as needed. Currently, the world's deepest drilled hole is the Kola Superdeep Borehole in Russia near Norway. 6-120mm M14 Diamond Hole Saw Drill Core Bits For Tile Ceramic Porcelain Stone. Youll also want to use a steady hand when drilling into granite, as this material can be very tough and hard to control. I recommend drilling a piece of scrap wood first then anchoring that and using it to keep the bit on the right spot of the countertop. You can remove the wood at this point. You will need a bit that is specifically designed for this type of material. Diamond-plated bits and blades give highly precise and clean cuts. They will be able to advise you on the best methods and tools to use in order to get the job done safely and efficiently. Remove your guide bit on the hole saw and pre-cut your plywood with a wood hole saw with guide bit. I called our granite installer and they want $200+ just to come drill the holes. Granite, although relatively expensive, is highly durable, ranges in color from pink to green to gray, and displays gradations that tint and blend its appearance. If you are new to cutting and working with granite, it is best to outsource the cutting or drilling task to a professional. There is no doubt that this is a risky DIY project if you don't research how to do it properly. Hence, it is essential to use the right tools if you want a precise and clean cut. Also I am assuming for $200 they take fault if there is a crack. Harbor freight has a hammer drill for $13.00 on sale now and then---$29 normally. The stainless steel undermount sink is 32 inches wide. As a small thank you, wed like to offer you a $30 gift card (valid at GoNift.com). Make sure the area is safe and prevent kids and pets from entering while you are drilling. Finally, vacuum up the debris and water with the wet/dry attachment. It is resistant to both fire and water damage, making it an ideal choice for buildings, countertops, and other structures that need to stand up to everyday wear and tear. Top rated: 3 Lowest rating: 1 Summary: Articles about How to Drill Holes into Granite Granite is usually bought and installed as a single slab covering the entire countertop surface.This is why, when you think of adding fixtures Match the search results: Place the drill on top of the marked location and apply light pressure. To drill hole into granite countertop, the tool used is a diamond core drill bit hole saw. The whole process took a lot of time, but I learned a great deal. By alignment jig, you mean some other material with the holes pre-drilled in it that I would clamp to the countertop? You can drill into granite countertops, but only with a diamond core bit. This will help keep the drill bit cool and allow for smooth and efficient cutting. Drilling a hole in granite is not complicated when you have the right tools. One crack and your entire granite is ruined. I hate paying anyone to do something simple like that at my house but man this could turn out bad. When your bit is through your material, place a rag . 1pc 6" Turbo Diamond Saw Blade Porcelain Tile Marble Granite Cutting Disc Cutter. Drilling a hole in granite is not that complicated. With the right tools and techniques, however, homeowners and do-it-yourselfers can drill through granite like a pro. How to drill a small hole in granite countertop? Quartz, Marble and Granite. This will help to minimize the risk of injury or damage to property when working with this type of stone. Tear off several pieces of duct tape and attach them to mark the location for the hole. If you already cut out your plywood, be careful when you get to the end of drilling your hole because you can easily plunge your drill through the hole, slamming the drill onto the counter and breaking your top. The cost of drilling a hole in granite can range from $200 to over $500. How do I tell if this single climbing rope is still safe for use? The process can be dangerous and if not done correctly, can damage the rock or even cause injury. To ensure the drill bit does not slip, clamp some miscellaneous wood over the drilling area and mark the wood with a marker. Hence, it is always wise to outsource it to professionals with the right tools and expertise. Should it be evenly spaced? As such, it is necessary to drill holes through them to fix sinks and other plumbing accessories. -Use a lubricant. If you can't clamp the jig in place I think you should get the same effect by gluing it to the benchtop. One needs specialized tools for the intended purpose. Take a drill bit designed for use on granite and install it on the drill. This article has been viewed 291,996 times. As you begin to make progress, continue adding more lubricant and check the surface frequently to make sure youre making smooth progress. Forget the hammer drill. At some point you are spending on tools close to what the stoneman wants. This drilling method takes more time, and you must . To avoid these hazards, safety precautions should be taken including wearing protective clothing and equipment, using a dust mask, and avoiding prolonged exposure to silica. In addition to looking very beautiful, this material does not easily chip or scratch, making them an excellent option for high-traffic areas. Otherwise it can push with considerable force. GoImproveHome is reader-supported. When installing granite, though, you may need to drill a hole in the sink for attachments such as plumbing fixtures. To create this article, 9 people, some anonymous, worked to edit and improve it over time. for this you can take a whiteout pen painter's tape. 2)Using high performance compound piece combination , enhances the core drill bit's life. If you are drilling granite in a commercial setting, it is also important to follow all safety protocols and ensure that appropriate protective gear is used at all times. Be sure to dry the drill hole completely before moving on to your next task! If you don't care whether you do anything from chipping to cracking your entire countertop, by all means, give it a go. The holesaw will try to wander when you first press it against the surface. This is just for a more finished look under the sink. When it comes to drilling into granite, there is no one-size-fits-all solution. Attach the reservoir to the granite Fill the reservoir with water Begin drilling by starting slowly and then work up to speed, periodically rinsing out and refilling the water reservoir. No appointment necessary! Is Energy "equal" to the curvature of Space-Time? Furthermore, they can do it quickly and more accurately. This will prevent the drill bit from wobbling as it touches the granite surface. by Samantha Berry | Aug 11, 2021 | Blog | 0 comments. And I have cut through many 1cm granit shower panels - you do not need a hammer drill, bit is key, and I drilled with someone constantly hosing the area with cold water - and would not drill for more than 5-10 seconds at a time. With these tips in mind, you should have no trouble drilling into granite rock successfully. It is an 8-inch faucet, center to center. To drill hole into granite countertop, the tool used is a diamond core drill bit hole saw. You may also want to use plumber's putty to make a dam around the drilling area. Can a prospective pilot be negated their certification because of too big/small hands? It is composed mainly of quartz and feldspar, with smaller amounts of mica, amphibole, and pyroxene. . With the right tools and techniques, drilling into granite can be accomplished successfully and safely. Contractors don't even wanna drill tile, and drill between tiles. To drill granite, a contractor will use a diamond-coated core drill bit to make the hole. Speed up the drilling at that point. Drilling Concrete with Masonry Bit and Regular Drill; You can drill holes into brick and other masonry work with a standard drill and a . We may earn commissions if you buy through our links. Having DIY'd a granite tile (24"x24") benchtop with undermount sink I'd say it's not that hard if you're careful and patient. They are made from a tough material that can withstand high temperatures and wear and tear. Drilling granite can be a safe and easy process if the proper precautions are taken. It should have 1,000 to 2,500 RPMs. The first step is to use a hammer drill to create a hole in the rock. However, in addition to having the right tools, drilling a hole in granite is time-consuming. Carbide bits are the most common type of drill bit used on granite. Drilling into granite rock is a difficult task. This works for any other stone surface too. Some people recommended putting a ice cube in the bit to keep it cool and emulate a wet drill. Start by drilling a hole in the marble with the hammer drill. Using the wrong tools will make the job difficult for the user and possibly damage the granite. Using a 1 3/8" wood hole saw, drill a hole centered both ways . In the latter case, using putty you can create a pool around the mark. How to Drill a Hole in a Composite Granite Sink. Drilling into granite rock can be a difficult and time-consuming task. There are several potential hazards associated with drilling granite, including flying debris, inhalation of dust, and exposure to silica. There are several tools to hold a handheld drill in perpendicular alignment, similar to (but not as sure as) a drill press. Or as I say.. who needs a built-in soap or water dispenser, when you can have a built-in beer dispenser. The slabs are then polished and sealed. To drill a hole in granite by yourself, you will need a drill bit that is specifically designed for granite. Place the hole blade over the marked cut. I haven't tried this but in principle it should be equally effective. DRY DIAMOND DRILL BITS FOR PORCELAIN GRANITE TILE . Start drilling! In the latter case, using putty you can create a pool around the mark. The tub is a 5 foot armrest tub made from cultured marble There is a website called digital-imaging where you can see all of the colors and patterns. The vacuum attachment is excellent for quickly and efficiently removing dust and dirt, while the cloth can be used to remove any lingering residue. I shared my experience my videos. The hole opener can drill quickly, easily and cleanly on tiles and other materials (marble, granite, clinker, roof ceramic, plastic, . Otherwise, more often then not, you are paying for the "experience" that an expert can provide, not the actual work. Arrange the 2 Step 2. Write a review. As several others have mentioned, no hammer is key. Even a greater chance of causing an issue when you don't have the right tools. For larger holes, or for drilling through thick layers of granite, a diamond core drill will be necessary. Granite is a type of hard, coarse-grained igneous rock that is composed of feldspar, quartz, and mica. Then, remove guide and now you have your starting guide to finish your cut. In order to drill into granite rock, you need to use a diamond-tipped drill bit and a steady hand. 1 Step 1. If the drill bit overheats, it can damage the granite and cause the hole to be uneven or irregular. The hole opener can drill quickly, easily and cleanly on tiles and other materials (marble, granite, clinker, roof ceramic, plastic, etc.) Some drill bit manufacturers recommend using water to cool and lubricate the drill bit while drilling. I'd drill the 3/8" holes without qualms, maybe even with a handheld, but that 1.75 incher is just begging to jam a hole saw and swing whatever alignment jig you've made around until it goes flying across the room. I agree, it's more about tools than time. Unfortunately, that type of granite has not been discovered yet, which makes granite a generally difficult material to drill into. It is 1 3/4 sink. Granite is a natural stone that is mined from the earth. This, and a grinder to drill chuck adapter, did the job well. In your case, your may be looking at a 2 inch diameter bit, considerably . The right choice of tools is the utmost importance for successful drilling into granite. DIY is possible, but this is the kind of job I would pass on and call in the pros. wikiHow is a wiki, similar to Wikipedia, which means that many of our articles are co-written by multiple authors. Mgtgbao Dry Diamond Drill Bits :2pc 3/16" (5mm), 2pc 1/4" (6mm), 1pc 5/16" (8mm) , 1pc 3/8" (10mm), 1pc 1/2" (12mm), 9/16" (14mm) with Hex Shank for Porcelain Tile Ceramic Marble Feature: Multi-purpose drilling for granite & marble, masonry, concrete, tile/ceramic, stone Wax inside for cooling,our Diamond Tipped Drill Bits have wax cores built-in which automatically absorb and . This water will lubricate and cool the bit down when drilling. How to drill a hole in a composite granite sink? However, with careful planning and attention to detail, it is possible to successfully complete the job and enjoy the beautiful results. Include your email address to get a message when this question is answered. if you tilt the bit, the edge of the hole is parabolic and not circular. wikiHow is a wiki, similar to Wikipedia, which means that many of our articles are co-written by multiple authors. You should use either a diamond core bit (hole saw) or a carbide-tipped masonry drill bit for granite to create a hole in it. In order to prevent the granite from chipping, clamp down some scrap stone right underneath the area in which drilling is to be done. 2. If you use a standard drill bit, you risk damaging your electric drill machine or ruining the bit. However, many plumbers do not drill holes in granite because they lack the tools and expertise needed, as it is not in their field. Youll also need plenty of lubricant, as granite is a very hard material. another option would be to route the lines from under the counter, into the wall, behind the backsplash, then out through the wall, using a wall mounted beer-tap. It is one of the most common types of rock found on Earth, making up about 10% of the planets crust. It is also important to use coolant while drilling, as this will help to keep the drill bit cool and extend its life. Others say you wont need to do that for their bits. 3 1/2" X 12" . Though, put a sponge on both sides of the bit so you don't make a mess. Once the granite is ready for installation or already installed, holes need to be drilled for the sink and plumbing. Different bits work better for different applications. In wet coring, you use water in the drilling process. Hence, it is always wise to outsource it to professionals with the right tools and expertise. To clean up after drilling granite, you will need to use a vacuum cleaner with a special attachment, as well as a wet cloth. by SDRTOP. The appropriate "hammer drill bit" will cost almost as much. The biggest challenge of drilling into granite rock is the hardness of the material. Drilling a hole in granite can be a difficult task. If you have a situation in which you need to drill one or more holes in a granite countertop for instance to install a soap dispenser or faucet, then it is important to use a drilling tool that is able to accomplish the task with skill and precision, and one that will help you drill without causing damage to the tool or the granite stone surface as a whole. With a little patience, youll be able to drill through granite like a pro. same application as granite, just install and care for it like cultured marble. For example, a diamond bit is ideal for creating a hole in the center of a piece of granite, while a tungsten carbide bit is better suited for roughing out the edges of a hole. Mark the location to be drilled with a sharpie (or other marker), or with a template if the hole is larger. They also know the right tools to use at different intervals of the drilling process. 3. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. You often find me in my workshop working on new projects. I would like to hear other opinions on this but I am not sure the risk is worth it. It only takes a minute to sign up. without water; the M14 connector makes this hole opener suitable for all common angle grinders, so it should be an essential part of every tiler's tool kit;. 1 Diamond Dry Drill Bit. You can drill dry or drill using water. It will keep the area on track to cut. Attach a diamond-tipped hole saw bit to your power drill. A standard drill bit is not going to be able to cut through granite. Always wear safety goggles when using a power drill. "Hole saws" for larger-diameter holes usually have a drill bit in the center that either sets or benefits from a pilot hole, so tilting might be highly problematic with the hole saw. % of people told us that this article helped them. 7 Tips and tricks for drilling granite countertops successfully. Keep it wet if possible. With careful planning and attention to detail, you will be able to successfully drill into granite rock. Its hard to know where to start, what tools to use, or even if youre doing it correctly. If your project requires precision work, be sure to apply extra care when drilling into granite rock as even the smallest mistake can cause major problems later on. 1pc 20-65mm Diamond Core Bit Drill Bits Hole Saw Cutter for Tile Ceramic Marble. They need to take accurate measurements and know the right places to drill to ensure the granite does not fall apart. Wear the appropriate protective gear, and follow all of the instructions provided by your drill manufacturer. Add a new light switch in line with another switch? Granite is a type of rock that is very hard and wear-resistant, it comes in at 6 or 7 ratings on the Moh hardness scale too and is mainly made up of quartz and feldspar. I am a granite top fabricator, and every time I drill a hole in granite or marble, it always scares me. Press firmly on the drill. Granite countertops have become popular in kitchens and bathrooms because of their beauty and durability. Diamond core bits are available in a variety of diameter and height. Continue drilling into the granite, approx. How much is solid surface countertop square foot? A Dremel or rotozip with a diamond drum bit along with a little H2O will enlarge that hole. It is not necessary. Once you have done your research and planned carefully, you are ready to begin drilling into granite rock. Granite is a rigid material, and it is very difficult to cut. Many homeowners use granites for their countertops in the kitchen and bathroom. Because of its hardness and relative brittleness, however, granite can be a tricky material to work with: You need special saws to cut granite tiles and industrial-level saws to cut counter-thickness pieces. How to drill a hole in granite. However, the actual cost would depend on the size of the hole you want to drill. Some manufacturers have drill bits that can be used for dry coring granite. Youll also need to think about the size of your drill and whether a rotary or hammer action is required. Use a core drill. This material is very beautiful but very expensive as well. Cut slow and have some one with a water bottle applying water at all times. Make sure you have a solid surface to work on, as the drill bit can easily bounce around if youre not careful. 2. Garage Humidity Level - How To Measure And Control Humidity. Other steps that can be taken to reduce the risk of injury include maintaining adequate ventilation and cleaning up debris as it is created. Practice on scrap pieces before trying the real thing. Interestingly, they will not spend a lot of time drilling the hole compared to how long you will spend doing it yourself. 5. How Much Does It Cost To Drill A Hole In Quartz Countertop. We use cookies to make wikiHow great. But I learned through online videos and resources, then practiced on the excess portion of the slab. Site design / logo 2022 Stack Exchange Inc; user contributions licensed under CC BY-SA. Looking online, you can get Diamond Core Hole Saw Bits for $40, and smaller diamond bits for the screws for around $10. You can put a few pieces of wet clothes in the dryer but should not do it with a full load. Now to hold the template in place ! However, in addition to having the right tools, drilling a hole in granite is time-consuming. Additionally, you should discuss your plans with any nearby homeowners in order to avoid any disputes over property damage. Wet Coring: In wet coring you use water to keep down the temperature of the tools and granite. For smaller holes, a masonry bit can be used with a regular drill, while for larger holes, diamond or carbide core bits can be used. Also I would be very careful with those bolts. Diamond core drill bits have a good reputation for drilling through granite with ease; a good one should be able to get through a -inch (1.9 cm) slab in less than a minute. Granite is one of the most complex materials to cut. The diameter of the hole saw should equal the diameter of the fixture or be barely larger. With a drill press this would be less than 250RPM, handhelds rarely go this low. Cut a piece of 1/2" plywood ,Approx. Home Improvement Stack Exchange is a question and answer site for contractors and serious DIYers. Cut a guide hole with your hole saw out of a scrap piece of ceramic tile or a thin 1/8" to 1/4" piece of wood and clamp it or have someone hold that with two hands firmly. I will also explain different questions you might have on this topic. Shank Type: Hex. Before you start drilling into granite rock, its important to take some time to prepare the surface. Looking online, you can get Diamond Core Hole Saw Bits for $40, and smaller diamond bits for the screws for around $10. This will help ensure that the process is done correctly and safely, without causing damage or injury. There are three main types of drill bits that can be used on granite: carbide, diamond, and tungsten. There are two different types of granite drilling. It goes without saying that once you determine the size of the hole you should prepare a right sized drill bit for the job. The drill bit is attached to a drill rig, which usually has a rotary motor that spins the bit at high speeds. Just remember to take your time, use the right drill bit, and keep the area well-lubricated. Once the hole is created, you can use a regular drill to finish the job. When drilling granite, it is important to use a diamond drill bit as they are the only type of drill bit that can withstand the extreme heat and pressure that is created when drilling this type of stone. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/8\/8b\/DRILL-THROUGH-GRANITE-Step-1.png\/460px-DRILL-THROUGH-GRANITE-Step-1.png","bigUrl":"\/images\/thumb\/8\/8b\/DRILL-THROUGH-GRANITE-Step-1.png\/725px-DRILL-THROUGH-GRANITE-Step-1.png","smallWidth":460,"smallHeight":355,"bigWidth":725,"bigHeight":560,"licensing":"