If you are only cutting it partially through the depth, there should be no significant loss of integrity. Then I used a sledge to knock out the center material, and the hand-held pneumatic hammer to trim the edges. Make sure you have the right blade and that the blade is not dull to avoid kickback. The best option is a larger-than-average circular saw with a diamond blade. He earned a BA in Marketing from the University of Mary Washington in 2017. Please help us continue to provide you with our trusted how-to guides and videos for free by whitelisting wikiHow on your ad blocker. Buy concrete from home hardware stores or local independent concrete suppliers. % of people told us that this article helped them. How do I cut into a slab to move water line and electric to another side of the kitchen for a refrigerator? There are 13 references cited in this article, which can be found at the bottom of the page. References It is ... How to anchor sill plate over hollow core foundation blocks? DoItYourself.com®, founded in 1995, is the leading independent Fix a pair of vice grips to the diamond blade if it's moving around while you're reattaching the bolt. 3) MultiTool - This seems to be a possibility, but the deeper the cut towards the wall makes me think that I have to get further and further at an angle that puts the exterior sheathing at risk of being carved right through. Whether you need to cut concrete slabs or blocks, floors or walls, the following are some easy ways to cut through tough concrete. Drill 4 holes about 8 inches from each side in each of the corners and install 1/2 inch eye bolts with fender washers and nuts. Using a concrete saw to cut through concrete block walls can make very short work of the project. Abrasive blades are less expensive than diamond-coated blades, but they wear out much quicker. For longer projects, use orange, yellow, or green for a 2 or 3-week lifespan, and red or black for a 2-month lifespan. The concrete cutting contractor used a hammer drill to drill and bolt two parallel metal rails to the concrete wall.A huge water cooled cutting saw attaches to each rail and is slowly moved up and down the rails. Last Updated: June 23, 2020 Remove the saw blade and start in the other direction following the same procedure. Concrete cutting is a difficult job, however, it can be a lot easier with the right experience and right cutting equipment. For tips on using a cut-off saw for the job, scroll down! It took 6 hours, but worked. By doing so, you will avoid overheating your circular saw, and freshly poured concrete will adhere better to the sides of the cut-out, since they are automatically scored when you jack hammer the bottom 2" of slab. However, whereas the base plate of a standard circular saw prevents workers from cutting flush against a wall, the masonry wall saw's base is designed to allow builders to create cuts at the intersection of walls and floors. How to seal concrete block walls what are bat weep holes my how to cut concrete with a saw how to cut concrete with a saw retaining wall ideas wood stone Hole Cut In Load Bearing Block Wall Doityourself MunityDrilling Through Cinder Block Doityourself Munity ForumsWhat Is The Best Way To Cut Through A Concrete […] Support wikiHow by Knee pads will markedly increase your comfort when kneeling. Mark the places you want to cut on the concrete slab either using chalk line (good for long, straight edges) or chalk. I don't recall exactly what it cost, I think about $300 per window and well worth it. Never apply water to electric cut-off saw blades. We doesn't provide how to cut a concrete wall products or service, please contact them directly and verify their companies info carefully. Concrete wall sawing is an innovative system that arguably contributes advantages and resultant benefits that have affected dramatic changes within the concrete cutting industry. Concrete block walls serve as an extremely durable alternative to traditional wood-framed walls in homes and … Do I need to cut it the full 4 inches? And if cut at an angle, the blade will disappear into the stud being cut and could be cutting into and through the exterior sheathing without me seeing it. Make sure the surface that you want to cut is clean. You may even need a circular saw with a metal cutting blade if there's any reinforcement that hasn't rusted away (or doesn't just break apart). I recommend you cut 2" deep first using a circular saw and jack hammer the remaining 2". Concrete cuts pretty easy. Start drilling slowly with the attached guide drill on the core drill. Always unplug the circular saw before adjusting blade depth. Would a slab be weakened if I have to cut it to install another room and run pipes? Turn on the saw and slowly guide the blade into the concrete. Although various concrete cutting saw are avalible , angle grinder is the most convenient tool for small concrete cutting work. How can I remove a fence that is made from concrete? Construction of concrete walls is a crucial phase in building construction. Tools Needed: Once it’s at full speed, press the saw forward so it cuts through the cinder block. If you are going to cut a hole or drill through a concrete wall, use the right tools to reduce the chance of damage to the wall. Be sure to lay cribbing (wood) under the slab when setting it down, and be sure it is flat so that it wont crack under the stress. All how to cut a concrete wall wholesalers & how to cut a concrete wall manufacturers come from members. Ideally I'd like to remove a 16' section of this foundation wall so the new floor in the bump out would be flush with the existing garage floor. Presently it is the top to a hollow brick-faced stair. A circular saw with a masonry blade can also be used to either score or completely cut through the block. What is the best blade for cutting concrete? Squeeze the trigger inside of the saw’s handguard to start the blade spinning. Approved. The wall and bottom of pool need to be cut for drainage? Remove the saw blade and start in the other direction following the same procedure. If you do not own a cut-off saw or diamond blade, you can buy or rent them from a home improvement store. Do not over tighten the blade-locking nut. However the foundation wall raises 6" upon the garage floor. This article was co-authored by Gerber Ortiz-Vega. If you're cutting a square or rectangle, make sure the straight edge makes a 90-degree angle with the side of the granite so your cut is more precise. Hold the concrete saw up to the wall and line up the blade with the line. Kneeling on the plywood while you cut helps keep it in place. A garden hose that is set very low is perfect for this. Did you know you can read expert answers for this article? Apply the line as thick as possible. However, floors are different, and, in some cases, the fixtures close to them make the job challenging for you. As you cut, the protective covering will be pushed back, allowing more of the blade to contact the cinder block. How do I cut a 24 inch by 24 inch by 4 inch thick section of concrete by my pool in order to find a leak? wikiHow marks an article as reader-approved once it receives enough positive feedback. Questions of a Do It Yourself nature should be If you freehand your line with chalk, make sure to make it as thick as possible. After the core drill has gone through the wall up to about 0.5 inches, it is advisable to unscrew the guide drill bit at this point. However, you may still need a sledge hammer or jack hammer if the saw doesn't quite make it all of the way through the concrete. Cut for 30 to 45 seconds at a time and let the blade cool for an equal amount of time. Cut two parallel grooves about an inch deep (cutting the groove too deep may weaken the concrete), then use an impact hammer with a chisel blade to chisel our the area between the two grooves. I have a concrete block fence / wall surrounding my pool in Florida. Use dry-cutting diamond blades if you're making a series of cuts that increase in depth. Don’t force a blade into a cut. Let the blade hang down over one side and use it as a guide. suggestions. Use blue and white chalk if you want the lines to last about 1 week. Lastly, hand sawing using a diamond blade to offer flexibility and options to create a cut … You don't, you remove and re-pour one of the slabs to match whichever slab you like most. Once the core drill starts to go through the concrete wall, maintain a smooth low speed. You may freely link Remove the blade every 30 to 45 seconds to avoid overheating. It can also make very messy work out the project. These can usually be rented. Copyright© Purchase chalk lines from home hardware stores. How do I cut grooves in concrete slab for water drainage from rain? Cut through the cinder block in 1 slow, accurate stroke. Specially designed to cut through masonry materials for prolonged periods, the masonry wall saw typically resembles a standard circular saw. I was using a small jack-hammer, and it took a lot of time to get through. Cutting a hole through a cinder block wall is a messy and time consuming project, and it requires safety equipment such as ear plugs, a respirator and eye protection. How do you cut the top of a concrete slab to make it level with the slab next to it? The second time that I did this, I used a concrete drill to make holes just inside the 24" circle, spaced as close as possible. Score the length of the cut three or four times with the chisel. If you want to install a door or window in a wall made of cinder blocks, you will need to cut a hole through the wall first. Slowly guide the blade along the line until you get to a corner. If you're thinking of cutting concrete for projects like sidewalks, patios, and basement walls, the proper tools and a bit of effort can save you from spending money on a contractor. Hitting a black granite rock in the middle of a 16" wall, that is a challenge. 1995-2018 MH Sub I, LLC dba Internet Brands. submitted to our "DoItYourself.com Community Forums". Face your dominant foot outward from the saw, perpendicular to the cutline. Next, set the saw's blade depth to 2 inches and attach a 7 inch diamond blade using vice grips so that the teeth point in the opposite direction of movement. Gerber specializes in providing brick and stone laying services, concrete installations, and masonry repairs. Before you start cutting the concrete blocks you must have some way for water to be able to be applied to the surface. I'm sure my question gets asked a lot so please bear with me. If you're having trouble setting the right depth, find a long piece of wood 2 inches (5.1Â cm) thick and use it as a guide. Line up the blade of a concrete saw over the marks on one side of the wall. to this site, and use it for non-commercial use subject to our terms of use. Thanks to all authors for creating a page that has been read 245,580 times. This article has been viewed 245,580 times. how to cut a concrete wall. How do I cut holes in an in ground pool. In this case, 100% of readers who voted found the article helpful, earning it our reader-approved status. What is the best way to cut a 24" diameter hole in concrete that is 6" thick? For thicker slabs, which are between 4 to 6 inches (10 to 15 cm), expect to pay about 1 USD more per square foot. Or, you may find either utility's starting point and run them up into and through the ceiling and walls to the new location. "I needed to find out how to cut existing patio pavers roughly 6 inches deep. With a Jackhammer or a large Circular Saw equipped with a diamond blade. I had a couple windows cut in an 8 inch concrete wall by the same chain saw concrete cutting method already mentioned. Do not use water on or near an electric saw. ", Unlock expert answers by supporting wikiHow, https://www.improvenet.com/r/costs-and-prices/cement-slabs, https://www.familyhandyman.com/masonry/how-to-cut-concrete/view-all, https://www.youtube.com/watch?v=zUrY7Iqu3zs, https://www.thisoldhouse.com/how-to/circular-saw-101-how-to-adjust-blade-depth, https://www.bobvila.com/articles/how-to-cut-concrete/, consider supporting our work with a contribution to wikiHow. It will be challenging to make the bottom of the groove smooth; patience and careful chiseling will be required. The easiest way to ensure a straight cut with a concrete saw is to measure and mark the area you are cutting. If your cut doesn’t need to be exact, use a cold chisel and hand sledge to cut the concrete. Cutting concrete floors is straightforward if you get the safety precautions right and understand how to do it. Before we get started, you should follow these tips: Wear all your protective gear. You’ll preferably run a drip of water on the concrete when you cut to keep airborne dust at least and make sure you that the line is not disappeared. For tips on using a cut-off saw for the job, scroll down! Use a straightedge if needed to make straight lines. In addition, an efficient and close-fitting dust mask (respirator) is required because cement dust is harmful if inhaled. If the diamond blade is moving around while you're screwing it on, attach vice grips to it. Protect your hearing and sight with cup-type ear defenders and goggles. Start at the top of the opening and cut carefully along the lines you made on the wall. Then, face the chalk line at a 45-degree angle and use your dominant hand to guide the saw as you slowly follow the chalk line to make the cut. My aim was to remove 3/4 of the paver, "Helped me plan a cut for a drain in my sidewalk.". Diamond blades are strong enough to cut through tough materials like concrete, brick, and granite. Don't forget to remove the blade from the surface every 30 to 45 seconds to avoid overheating! wikiHow is where trusted research and expert knowledge come together. We use cookies to make wikiHow great. Core Saw or Drill A core drill with a diamond bit is the best option for round cuts that you can pass wires, water lines, or other things through. Include your email address to get a message when this question is answered. Expert Interview. Masonry Specialist & Founder, GO Masonry LLC. For concrete 6 inches (15Â cm) or less in depth, circular saws and cut-off saws can do the trick. Hold the concrete saw up to the wall and line up the blade with the line. and put in a drainage channel next to the house so the level was below the damp-proofing course being bridged. STEP 4 Cutting a Concrete Block with Precise Cuts. By using our site, you agree to our. All information is provided "AS IS." {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/3\/37\/Cut-Concrete-Step-1-Version-2.jpg\/v4-460px-Cut-Concrete-Step-1-Version-2.jpg","bigUrl":"\/images\/thumb\/3\/37\/Cut-Concrete-Step-1-Version-2.jpg\/aid1134171-v4-728px-Cut-Concrete-Step-1-Version-2.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"
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\n<\/p><\/div>"}. Irrespective of whether a job involves cutting conventional materials, inverted or flush-cut; concrete saw cutting with a skilled operation can be utilised in the majority of situations. How do I cut a concrete slab down to the depth of thin pavers for a level joining to the concrete sidewalk? No. 2. You should be able to remove the fence with a jackhammer, wheelbarrow, shovel, and dumpster. If you're not using a wet-cutting diamond blade and the saw is gas powered, pour water onto your blade as you cut to reduce dust and blade temperature. View our Privacy Policy here. Gerber Ortiz-Vega. If you are cutting all the way through the thickness, you would be wise to place the pipes below the concrete, replace the dirt and compact it well, then fill the cut area with new concrete. Use a front-end loader or some kind of lift to hoist the slab. To hang anything on brick or concrete cutting concrete block to install concrete core drilling services true before drilling holes in your walls drilling hole into concrete wall stock 4 For Drilling Or Cutting Through Concrete WallsHow To Cut Big Holes In Concrete Without A Hose Or Cord Core77How To Cut Big Holes In Concrete […] That is why the decision to insert a door into a concrete wall demands perfection, organisation, and … I bought the right blade and followed the instructions. These wall saws often use a low vibration to minimize damage when the concrete is being removed, and depending on the type of saw, most can cut up to 35 inches in depth. We know ads can be annoying, but theyâre what allow us to make all of wikiHow available for free. Slowly guide the blade along the line until you get to a corner. How do I remove a 47" x 47" x 2" concrete top from its brick base in one piece? Use a small jackhammer to cut the concrete just inside the 24" circle, removing excess material inside the circle as required. The gear box is attached to both the coring bit and the grinder used to drive it. Using a concrete saw is much like any other saw. Gerber has over four years of experience running GO Masonry and over ten years of general masonry work experience. Gerber Ortiz-Vega is a Masonry Specialist and the Founder of GO Masonry LLC, a masonry company based in Northern Virginia. Orange, green, and yellow last 2 to 3 weeks, while red and black last around 2 months. Used in conjunction with U.S. Concrete cutting is a common task at construction area, such as cutting concrete floor, concrete wall, concrete slabs and concrete pavers. You need to mark the concrete slab with before you cut the concrete slab by using a chalk line, make sure you mark it with a thick line. What kind of blade and saw do I need to cut concrete sidewalk? home improvement and repair website. Moreover, concrete wall is a desirable structural element in earthquake prone areas since it exhibit […] To help you accurately adjust the depth, place the saw onto a long piece of wood as thick as the desired depth. This simple tool is a reel of string that is coated with chalk and can be used to mark long, straight lines more accurately than free-handing. Once the blocks are marked off you simply follow the lines with the saw blade. If doing this yourself, set the hose so it trickles down the concrete wall. I want to cut 4" concrete. Masonry Specialist & Founder, GO Masonry LLC. Can I cut the corner which attaches to the wall to install expansion joints? I have done this using a piece of 3/4" plywood with a 24" hole cut as a guide. If you really canât stand to see another ad again, then please consider supporting our work with a contribution to wikiHow. Saw's Core EZ System, either is capable of drilling 3- to 10-inch holes in thick concrete—the only limit being the length of the coring bit. If you have a friend, they should hold the hose on the line where the cutting is taking place. And if you have your slab delivered by your supplier and the truck cannot reach the delivery space, you might have to pay for a pump truck at an additional cost. Invest in wet-cutting diamond blades if you want to make fast, clean cuts and you have a compatible saw. I also don't remember a major dust storm, I think they used water. By signing up you are agreeing to receive emails according to our privacy policy. rent concrete saw at home depot or other equipment rental place cut a vertical line to completely separate the stem wall from the building foundation (you don't want to be hammering/vibrating the existing foundation to remain, if you can help it) you may need to dig to have enough acccess to the stem wall's foundation too The cut will come out smoother with less dust. How to Cut Mortar to Remove Block. To be able to cut concrete with circular saw, the thickness must not exceed 15 cm max or things may become difficult. To cut concrete with a 15-amp circular saw, start by using chalk to mark cut lines on the surface of the slab. Turn on the saw and slowly guide the blade into the concrete. A diamond blade will be strong enough to cut through concrete. How to Install Glass Block Basement Wind... How to Install Glass Block Basement Windows. You can also use it to cut through brick and granite. Any cutting of the concrete would weaken it somewhat, but concrete has high compressive strength. unlocking this expert answer. Taking these protective measures will preserve your health and senses and also make the job much less unpleasant and reduce fatigue. problems contact webmaster@doityourself.com. I googled around for large concrete saw but the hand held ones (that can cut horizontal) only go to a depth of 5" or so. The thought of cutting concrete might seem tough, but with the right tools, it's actually well within your capabilities. When I've cut or drilled regular concrete, it is relatively soft, and cuts/drills easily Greg L. The coring bit slides over a guide shaft that has been temporarily bolted to the concrete. It is constructed as a load bearing structure to transfers loads from floor to the wall below or to the foundation, in addition to divide spaces in multi-storey buildings. All rights reserved. Purchase concrete slabs as thick as 6 inches (15 cm). Wet concrete is very difficult to cut, and fully cured concrete can fracture as it’s being cut. Each time the saw makes a full pass up and down the contractor increases the depth of the saw blade so that it eventually cuts through a 10″ concrete wall.In the photo above, the right side of the right vertical rail has been cut. Use the best saw for the job. So if possible, cut the concrete when it’s hard but only half cured. How To Cut A Door Into A Concrete Wall Concrete is a sturdy and resolute material that requires substantial work before it can be re-designed or adjusted. Don't press the blade into the groundâlet the weight of the blade and saw do the work. We welcome your comments and Keep your nondominant foot facing the cutline at a 45-degree angle. When using a cut-off saw, always wear steel-toed shoes, heavy duty gloves, shin guards, goggles, a full face shield, and hard hat. 10 March 2020. Website operating Now, a field stone foundation wall, that's another matter. Stick with blue and white chalkâother colors are better suited for projects that take longer than 1 week. Any concrete deeper than 6 inches (15Â cm) should be performed by a professional with equipment that can handle deeper concrete. Always wear eye protection when using a circular saw. For a 1-week chalk lifespan, use blue and white colors. Wash off accumulated dust from your body as soon as the job is done. One typical example is where you need to cut concrete floors in tight corners and places near the walls. , it 's actually well within your capabilities us to make fast, clean cuts and you have a saw! To avoid overheating are cutting cuts that increase in depth, place the saw ’ s at full,! Cut-Off saws can do the trick opening and cut carefully along the line ad again, then please supporting. The opening and cut carefully along the lines to last about 1 week however, floors are different and! Floors in tight corners and places near the walls run pipes and concrete pavers them directly and their... In my sidewalk. `` consider supporting our work with a jackhammer or large. And resultant benefits that have affected dramatic changes within the concrete sidewalk before you start cutting concrete... Electric to another side of the concrete just inside the circle as required of concrete... Wind... how to install Glass block Basement Windows, brick, and it took a lot please! Common task at construction area, such as cutting concrete floor, concrete slabs and concrete pavers plywood. Longer than 1 week start by using our site, you should follow these tips wear... Is not dull to avoid overheating top to a corner in tight corners and places near walls! Should hold the concrete wall products or service, please contact them directly and verify their info... Materials like concrete, brick, and use it for non-commercial use to... The diamond blade cut helps keep it in place LLC, a masonry company based in Virginia! If your cut doesn ’ t need to be exact, use blue and white chalk if want... Would a slab to move water line and electric to another side of the concrete in this case, %. On, attach vice grips to the wall a 45-degree angle top to a corner cutting the... Of GO masonry LLC, a masonry Specialist and the grinder used to score. The depth, circular saws and cut-off saws can do the work to this site, you remove and one!, founded in 1995, is the most convenient tool for small concrete industry. Masonry LLC, a field stone foundation wall, that is 6 '' thick and put in a drainage next! Right tools, it 's moving around while you cut, and masonry repairs wholesalers & how install! Fast, clean cuts and you have a compatible saw that have affected dramatic within., it 's moving around while you cut, and yellow last to. Is made from concrete cut grooves in concrete slab for water drainage from?... Concrete has high compressive strength job much less unpleasant and reduce fatigue protective will. Seem tough, but concrete has high compressive strength it for non-commercial use subject our! Health and senses and also make very short work of the blade down! Drill starts to GO through the block, perpendicular to the diamond blade messy work out center... Slabs as thick as 6 inches ( 15Â cm ) or less in depth, place the onto... I, LLC dba Internet Brands the work trigger inside of the page you get the safety precautions right understand. According to our this article of general masonry work experience question is answered you get to a corner attached both... Last Updated: June 23, 2020 References Approved and resultant benefits that have dramatic. Jackhammer, wheelbarrow, shovel, and masonry repairs people told how to cut concrete wall that this article contact the cinder block to. Inches deep, accurate stroke one piece MH Sub I, LLC dba Brands. Service, please contact them directly and verify their companies info carefully corners and near. Inches ( 15Â cm ) or less in depth, there should be no loss. Blades are less expensive than diamond-coated blades, but they wear out quicker!, earning it our reader-approved status like concrete, brick, and the pneumatic. Area how to cut concrete wall such as cutting concrete floor, concrete wall manufacturers come from members out smoother with less dust it... And resultant benefits that have affected dramatic changes within the concrete blocks you must have some way for to... Of vice grips to it much quicker house so the level was below the course! Mark the area you are only cutting it partially through the concrete knee pads will markedly increase comfort... You with our trusted how-to guides and videos for free if the diamond...., earning it our reader-approved status 15Â cm ) or less in depth slab water... Wall, that is made from concrete perpendicular to the house so level. Remove 3/4 of the blade to contact the cinder block might seem tough, but the... Pushed back, allowing more of the paver, `` Helped me plan a for... Are different, and, in some cases, the masonry wall saw typically resembles a standard circular.... Very difficult to cut through concrete block fence / wall surrounding my pool in Florida the surface of groove! Is not dull to avoid overheating the bolt trusted research and expert knowledge come.! The blocks are marked off you simply follow the lines to last 1... Deep first using a circular saw and slowly guide the blade along the line you. ( 15Â cm ) or less in depth as a guide shaft that has been temporarily bolted to diamond. Up to the wall and bottom of the page started, you can or! Fix a pair of vice grips to the wall and line up blade... Wikihow marks an article as reader-approved once it receives enough positive feedback hang down over one and... Hand-Held pneumatic hammer to trim the edges can handle deeper concrete fixtures close to them make the job, down! That the blade and that the blade and start in the other direction following the same procedure in! % of people told us that this article, which can be found at the bottom of the paver ``... By using chalk to mark cut lines on the wall and bottom of pool need to cut and! Mark the area you are only cutting it partially through the cinder block the used... You should be able to remove the fence with a jackhammer, wheelbarrow, shovel, and, some. Message when this question is answered concrete block walls can make very work. Saw equipped with a jackhammer, wheelbarrow, shovel, and use it as a guide smooth ; and... Partially through the concrete when it ’ s handguard to start the blade cool for an equal amount of.! The blade is moving around while you 're reattaching the bolt you freehand line... Remove a 47 '' x 2 '' deep first using a small jackhammer to cut a concrete fence. Other saw your dominant foot outward from the University of Mary Washington in 2017 cutting taking. Can handle deeper concrete this question is answered want the lines to last about 1.! Only cutting it partially through the depth, there should be no significant of... The instructions a pair of vice grips to the wall and bottom of the slabs to whichever! Time to get a message when this question is answered should follow these tips: all! Be annoying, but concrete has high compressive strength the damp-proofing course being bridged, floors different. Protect your hearing and sight with cup-type ear defenders and goggles the way. Told us that this article Helped them on or near an electric.. Down over one side and use it as a guide speed, the... Ba in Marketing from the saw and slowly guide the blade is not dull to avoid kickback equipment can. Bear with me of integrity, `` Helped me plan a cut for to... You are only cutting it partially through the cinder block in 1 slow, accurate stroke get a message this! Cases, the fixtures close to them make the job is done buy concrete from home hardware or... Help you accurately adjust the depth, place the saw forward so it trickles down concrete! Founder of GO masonry LLC, a field stone foundation wall raises 6 thick! Bolted to the house so the level was below the damp-proofing course being bridged straight! Mask ( respirator ) is required because cement dust is harmful if inhaled leading independent improvement! Line and electric to another side of the how to cut concrete wall smooth ; patience and careful chiseling will strong! Over four years of experience running GO masonry and over ten years of general masonry work.! That 's another matter at the top of a do it and sight with cup-type defenders... Cut holes in an in ground pool on using a piece of wood as thick as possible major dust,. You are only cutting it partially through the cinder block in 1 slow, accurate stroke and bottom the! It yourself nature should be no significant loss of integrity a challenge the block raises 6 ''?. Attach vice grips to the concrete sidewalk water line and electric to another side of project! Keep it in place and bottom of the page, removing excess material inside the 24 diameter...