7. Place the blade of the saw on the concrete block. This step is a deciding factor on the type of cutting result you will get after sawing. © PowerSawExpert.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to amazon.com. Cut the block, allowing the saw and blade to do most of the work — don't apply too much force. There you go! There are several types of blades; each has its own use. You need to plan your cut before practically engaging in it. Contrary to the dry blades, wet blades always must have water added to it during the cutting process. To make it easy you have to follow some steps, procedures and use the right tools like the proper blade type, the power of the circular saw…etc. Back the saw out after about 30 seconds to avoid overheating. Don’t force a blade into a cut. If your cut doesn’t need to be exact, use a cold chisel and hand sledge to cut the concrete. Set the saw blade so it will cut about 1/4 inch to 1/2 inch deep. If yours doesn’t have the switch, use a wrench to loosen the bolt holding the blade in place. The type of circular saw doesn’t have a significant effect, but I prefer using the DEWALT DWC860W because it has a built-in water feeding system that will help you reduce the dust and prevent the overheating, and I’ve already tried it with the DEWALT DW4701 blade for cutting retaining wall blocks. A circular saw would be a power tool that uses an abrasive or a toothed disc to cut various materials by utilizing the motion spinning around its arbor. All you have to do is mark out the curve on the block and follow the curved line. Tip 2: Cut Concrete with the Right Diamond BladeFor maximum cutting speed and blade life, you should match the blade as closely as possible to the material you're cutting. Step 2: Adjust your circular saw to be aligned with the chalk line and have a cutting depth of 50mm and let it start to reach max speed. Set the saw blade to cut ½-inch deep, and position the paver on a flat surface, such as the ground or a sturdy board set on top a couple of sawhorses. You may want to cut some blocks for your yard, cut a wall or slab or whatever you want, but if you are trying to cut it, you have to do it in the right way because it’s actually a hard job to do, and instead of hiring a contractor to do the job and it may cost you a lot of money, you can do it all by yourself if you have the right tools. Don’t bring your face close to the surface area while sawing if you are using the dry cutting method. The marks act as the guidelines on wear the circular saw blade will pass. Each material has an indicated type of blade which you can find in the hardware store or online. Set up workhorses or, preferably, a work stand with adjustable sides to secure the pavers. In fact, there are specific saws that are designed for concrete cutting which are called “concrete saws” but they’re a little bit pricey, but circular saw are efficient and can do it flawlessly.  for cutting retaining wall blocks. Luckily, this article will highlight the easy steps, tips, and tools needed to effectively cut through concrete blocks in seconds. Reinforced concrete is a structural element in your building, so be careful when dealing with it, because cutting the rebar inside the RC may cause cracks in other parts of the RC. Measure the area where you’ll install the cut cinder block. Simply use your circular saw and diamond blade to cut completely through the block. The water eliminates the problem of dust particles and also cools the blade while working. Make a series of passes until you have cut through the concrete block. The goggles protect your eyes from flying debris like little stones and dust while the mask prevents you from inhaling dust particles. Cutting concrete with a power saw produces enormous amounts of dust. After choosing the proper blade, install the blade on the saw. Why Should You Use Circular Saw To cut Concrete Blocks? You will need to move the saw blade back … Diamond blades are more expensive; they do not wear easily and stay for a longer time, and if you are a contractor who always deals with concrete cutting jobs, diamond blades will be the prefect tool for you. If more than a handful, diamond may be the way to go. It can cut materials such as masonry, metal, plastic, and wood, and can be either mounted to a machine or hand-held. Have a superb cutting experience. The following is a list of the most common concrete-cutting chores – ranging from small to enormous – and the best techniques and tools for handling these tasks. Concrete blocks are usually made with gravel and cement which make them hard. Now turn on the circular saw and carefully bring it down on the outline and start cutting. Put on your safety gear; Remove the old blade Attach the diamond blade; Mark out the line you want to cut; Power-up your circular saw; Place the blade of the saw on the concrete block; Start cutting With all the basic and innovative techniques, this was all about the Circular Saws and how to cut concrete blocks with Circular Saw. When attached with the correct blade, the saw is capable of cutting just about any material from steel to concrete. Small rough cuts can be made using a sledgehammer and cold chisel. If you are cutting the concrete block because you want to trim the block to the required size, you can hit the part you don’t need slightly so it will give way. Step 3: Start the cutting slowly and don’t force the blade or the circular saw, just let the machine do the cutting by itself and you do the feeding slowly. Reinforced concrete blocks are usually made with concrete, gravel, steel, and wire mesh. Quick Guide on How to Make Wood Molding with a Router, A Complete Guide on How to Use a Compound Miter Saw, How to Cut Plexiglass With a Circular Saw, A Complete Comparison: Sliding Miter Saw VS Compound Miter Saw, How to use a circular saw to cut straight, Best Miter Saw for Crown Molding for 2020 – Top Picks & Reviews, Best Benchtop Router Table for 2020 – Top Picks & Reviews, Best Router Bits for Cabinet Doors for 2020 – Top Picks & Reviews, How you can cut concrete with the circular saw, To be able to cut concrete with circular saw, the thickness must not exceed 15 cm max or things may become difficult.Â. If you want to cut in reinforced concrete, do not do it by yourself because of two reasons: You will encounter rebar and things may not be good with you, you will need a professional. To cut concrete with a 15-amp circular saw, start by using chalk to mark cut lines on the surface of the slab. When you have completed the steps above, place the diamond blade on the marked point of the concrete block. This video shows you exactly what it looks like to use wet cutting blades: If you are doing a quick job, then aim for the masonry abrasive blade. Before we get started, you should follow these tips: Wear all your protective gear. Inspect every part of the saw before and during the task. Step 1: Mark off the cutting path with the chalk line. Depending on the thickness of the concrete, you may have to raise the blade and cut through only a portion of the paver. If you are using a battery-powered saw, slot in the battery. Hold the saw firmly in place with both hands and turn on the saw. Put a strip of duct tape along the bottom of the saw body where it runs against the concrete. So, let’s get to it. If the blade can saw through concrete, think of what it could do to your fingers. To fix in the diamond blade, slide the blade cover backward. Consider using bright orange chalk powder. This will keep the saw from scratching the concrete surface as you cut. When cutting through concrete blocks, there is usually a large amount of dust and sand that is sawed out. Step 5: Do not make a continues cut, stop the blade every 45 seconds and do it again. Fixing the serrated diamond blade is a tad different from regular blades. The easiest would be with a circular saw and a masonry cutting blade. There are two methods that can be used when using a circular saw to cut concrete blocks. If you’re using cinder blocks to build a wall or patio space, cutting cinder blocks to a precise size will ensure they fit perfectly. If you are using a battery-operated saw, remove the battery and switch off the saw. The best thing about this type is that it has a long life span but be careful, they produce high amounts of silica dust during the cut. The common concrete blocks are “4-inch, 8-inch, and 12-inch” blocks. Saw … If you want to buy any other type, just make sure that the RPM is above 3000 just to increase the cutting speed. Make sure you have the right blade and that the blade is not dull to avoid kickback. The concrete block varies in size and thickness. You will enjoy reading them. Squeeze the trigger gently until the blade begins to move. How To Use Reciprocating Saws To Cut Trees? Diamond rim masonry blades can cut concrete block when used on a circular saw. Best Corded Circular Saws: Which One Should You Pick? So now that we know we can cut concrete with a circular saw lets dig into some other aspects of what goes into cutting concrete with a circular saw. With the diamond blade placed on the point marked out, pull the trigger of the circular saw to start cutting. Cutting concrete with a circular saw requires care, precision, and the right tools. Cutting concrete blocks is a daunting task because of the materials that were put together to make the block. Best Spray Guns For Plasti Dip – Give Your Car A New Look! Your safety is vital when using any tool. Then take out the blade. The diamond blades are even better than the masonry abrasive ones. When the dust becomes airborne, it's possible to inhale it into your lungs, which can create severe health problems. With the wet method, water is constantly needed to be applied to the concrete you are cutting. Take a tape measure and measure the length of the space where the cut cinder block will fit. For cutting masonry blocks with a circular saw, the most important thing is using an appropriately sized diamond blade. Concrete is a mix of sand, gravel, cement and water, and it is everywhere. The wet cutting blades are on the top, but you must add a low stream of water during the cut, this will lubricate the blade during the cutting process and also it will prevent the silica dust from being produced. Best Table Saw Fences: 5 Different Models Reviewed, Best Cordless Bandsaws: Take Your Tool Everywhere With You, 5 Best Cordless Jigsaw: Detailed Review And FAQ’s, 5 Best 14-inch Bandsaws: Detailed Review & Buying Guide. This will not allow you to cut well. Modern circular saws have a “blade release switch” that allows you to remove the blade. Before we get started, you should follow these tips: Make sure the surface that you want to cut is clean. It will provide a perfect cut but is very dusty, so be prepared for a bit of cleanup and the need for wearing face dust masks. Only buy the wet cutting blades if you have a specific concrete saw or a circular saw with special parts to add water stream to the cut during the process. A circular saw would be a power tool that uses an abrasive or a toothed disc to cut various materials by utilizing the motion spinning around its arbor. The teeth of the blade should be facing in the direction that you will be cutting. Ensure you follow the steps and safety measures above and you will have a perfectly cut concrete brick when you are done with your task. Tape the saw to prevent scratches. If you want to buy any other type, just make sure that the RPM is above 3000 just to increase the cutting speed. The rest of the blockwork can be quite quiet other than the block cutting. Cut in several steps, say 3/4 to 1" at a time. Simply make a line on the concrete block, so you know which part you want to cut. Tips to get the best cutting results when using a circular saw to cut through concrete, Safety measures to follow when using a circular saw to cut concrete blocks. However, a circular saw that has a special blade is the best choice. The wet/dry cutting blades are actually diamond blades but the problem is that cutting concrete makes the blade extremely hot, and here comes these blades. If you are a contractor and doing many concrete cutting jobs, aim for the diamond blades. The steps above will also work well if you need to cut curves in the concrete block. Here, we are dealing with the strongest material on earth, the diamond. This step depends largely on your purpose for cutting. Remove the screw and the washer. Turn on the circular saw's motor, and lower the saw's blade gradually onto one edge of the chalk or pencil line on the paver's upward-facing side. Tools Needed: It would be great if you could buy precut blocks also. Step 4 Cut around the entire block with the saw, then adjust it so it will cut 1/4 inch to 1/2 inch deeper into the block. The reason a diamond blade is advised for cutting concrete is that it is capable of ripping through the hardest of materials. Make sure you have the right blade and that the blade is not dull to avoid kickback. The circular saw has to be hands down one of the most aggressive power cutting tools ever made. Be sure to leave a comment below if this article made your task easier. Regular concrete blocks are usually measured in inches or millimeters. Actually, the most important thing about cutting concrete is the blade, as we learned before in this guide that the blade is what really makes the cut, not the saw, meaning that if you have the best concrete saw in the world but have the wrong blade, you won’t cut anything and you will end up breaking the blade. Step 5 Lower the end of the blade to the cut-line, keeping the shoe of the saw against the cinder block. Each method comes with a type of diamond blade that suits it. Another method for cutting concrete pavers is to use a hand-held power saw such as a Skillsaw with a masonry blade or a cut-off saw. Michael is the Editor at thetoolgeeks.com. Score the length of the cut three or four times with the chisel. An angle grinder's design enables it to cut small square holes in a concrete block; a useful trait when installing electrical outlets in a concrete block wall. If you are cutting because you need both sides of the concrete block, then hitting it will not be your best bet. Secondly, slide the blade cover and make sure the blade is locked firm. It has a blade that can usually cut 1/4" or so deep up to several feet wide of concrete per pass. Push the blade of the saw to and from while cutting to ensure the blade cuts evenly. With the diamond blade, the teeth are usually angled downwards like the shape of a comma (the punctuation mark). It also depends on the type of concrete that you want to cut whether it is a hollow core block or reinforced concrete blocks. To be able to cut concrete with circular saw, the thickness must not exceed 15 cm max or things may become difficult. Before you move on to the cutting procedure, drip the concrete block into the water so that dust will reduce and also make the cutting easy. I had a sidewalk that was raised above a driveway and I knocked about a 45 degree angle into the corner of the side walk block to match the driveway. Common concrete blocks are made with concrete, sand, and gravel. 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. Mark the cut and clamp the stone or paver to a stable work surface. However, certain building needs require different sizes and make of blocks. Attach the blade and the washer, and then tighten the screws. Operating circular saws aren’t difficult enough. It’s advised to take a break from cutting for a few seconds, especially if you are working on a large block like the 12-inch concrete block. If you’re using a wet saw and the chalk is washing off, use a crayon so the line will stay. 8. Be sure of the places you want to cut and mark the concrete blocks with the chalk line. This isn’t as hard as it sounds. While you can find vacuum systems designed to collect the dust material, the systems aren't fully effective. Step 4: If you are cutting with wet blade, then make sure you have someone helping you add a slow stream of water to the blade during the process to overcome the heating and prevent the dust. If you have a blade in the circular saw, you need to remove it, so you can attach the diamond blade. Cutting cleanly through concrete blocks is not a task that can be executed with just any saw or power tool. Yes, a circular saw can cut concrete with the right blade. Im doing jobs for other people during the day or looking after my son so its really just a temporary thing for my own building projects. The circular saw however is one tool that can cleanly cut through concrete easily, leaving you with desired and accurate results. Bring your face close to the concrete using a sledgehammer and cold and. 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