Measure the area where you’ll install the cut cinder block. 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. The common concrete blocks are “4-inch, 8-inch, and 12-inch” blocks. How to cut concrete blocks with a circular saw? Set up workhorses or, preferably, a work stand with adjustable sides to secure the pavers. When cutting through concrete blocks, there is usually a large amount of dust and sand that is sawed out. However, a circular saw that has a special blade is the best choice. 7. 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. Mark the cut and clamp the stone or paver to a stable work surface. With all the basic and innovative techniques, this was all about the Circular Saws and how to cut concrete blocks with Circular Saw. To be able to cut concrete with circular saw, the thickness must not exceed 15 cm max or things may become difficult. This generates power for the circular saw. 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. 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. 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. Fixing the serrated diamond blade is a tad different from regular blades. 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. Tape the saw to prevent scratches. 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.  for cutting retaining wall blocks. The dry cutting method: Dry cutting method involves using serrated or toothed diamond blades that can get rid of the sand particles while working. Modern circular saws have a “blade release switch” that allows you to remove the blade. Concrete blocks are usually made with gravel and cement which make them hard. The rest of the blockwork can be quite quiet other than the block cutting. 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. Don’t force a blade into a cut. 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. If you are using a battery-operated saw, remove the battery and switch off the saw. Back the saw out after about 30 seconds to avoid overheating. Put a strip of duct tape along the bottom of the saw body where it runs against the concrete. What are the tools required for cutting concrete blocks? Your safety is vital when using any tool. However, if you need to cut concrete blocks constantly, it would be convenient for you to buy or rent a concrete saw. Cut the block, allowing the saw and blade to do most of the work — don't apply too much force. You can’t remove a blade if it is spinning around as you try to unscrew it. If you want to buy any other type, just make sure that the RPM is above 3000 just to increase the cutting speed. Common concrete blocks are made with concrete, sand, and gravel. Michael is the Editor at thetoolgeeks.com. With the variety of the circular saw models and being versatile enough, these saws offer you with the corded and cordless functions and features. It also depends on the type of concrete that you want to cut whether it is a hollow core block or reinforced concrete blocks. If you are cutting because you need both sides of the concrete block, then hitting it will not be your best bet. If your cut doesn’t need to be exact, use a cold chisel and hand sledge to cut the concrete. He now enjoys researching DIY tools and writing guides about it. It can cut materials such as masonry, metal, plastic, and wood, and can be either mounted to a machine or hand-held. 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. 3 Best Heat Guns For Cell Phone Repair: Fix Your Phone Using Heat Guns, Best Cordless Sanders: Work Outside Without Any Problem, Best Sander For Metal Working – Reviews & Buyers Guide, Best HVLP Spray Gun for Woodworking 2020 – Chosen by a Professional Painter, Best Detail Sanders – Find Sanders For Tight Corners & Small Areas, 5 Best HVAC Tool Belt 2020 – Find The One That Fits Your Needs. An abrasive corundum masonry blade or a diamond blade are needed to cut concrete with a circular saw effectively and safely. The steps above will also work well if you need to cut curves in the concrete block. Though your eyes are protected, the debris can still hit any part of your face. 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. If you are using a battery-powered saw, slot in the battery. Sure, the blade is not made out of diamond, but only the teeth are made out of a compound of diamond and another reinforcing metal, it’s a composite material. Then take out the blade. 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. You'd have a very hard time keeping a miter cut flat. Step 5 Lower the end of the blade to the cut-line, keeping the shoe of the saw against the cinder block. 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. You need a diamond cutting blade with your circular saw to accurately cut clean through the block without damaging it. You need to plan your cut before practically engaging in it. The concrete block varies in size and thickness. If yours doesn’t have the switch, use a wrench to loosen the bolt holding the blade in place. If more than a handful, diamond may be the way to go. Hold the saw firmly in place with both hands and turn on the saw. These dust particles can affect the blade you are using and also the result you will get when you complete the task. Secondly, slide the blade cover and make sure the blade is locked firm. Consider using bright orange chalk powder. There are several types of blades; each has its own use. 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. 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 Push the blade of the saw to and from while cutting to ensure the blade cuts evenly. 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. 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. Cut in several steps, say 3/4 to 1" at a time. Methods of Using a Circular Saw to Cut Concrete Blocks. It has a blade that can usually cut 1/4" or so deep up to several feet wide of concrete per pass. The circular saw however is one tool that can cleanly cut through concrete easily, leaving you with desired and accurate results. The teeth of the blade should be facing in the direction that you will be cutting. Type of circular saw is used for cutting concrete? With the wet method, water is constantly needed to be applied to the concrete you are cutting. Press down on your saw’s arbor-lock to open and place the blade. When you have completed the steps above, place the diamond blade on the marked point of the concrete block. If you want to buy any other type, just make sure that the RPM is above 3000 just to increase the cutting speed. 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. Why Should You Use Circular Saw To cut Concrete Blocks? If you’re using a wet saw and the chalk is washing off, use a crayon so the line will stay. Here, we are dealing with the strongest material on earth, the diamond. How To Use Reciprocating Saws To Cut Trees? You will need to move the saw blade back … 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. Be sure to leave a comment below if this article made your task easier. 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. An angle grinder equipped with a concrete-cutting blade makes straight sharp-edged cuts in a concrete block's surface. Saw … Step 1: Mark off the cutting path with the chalk line. Firstly, make sure your saw is unplugged. So to protect yourself from cuts, use a pair of really thick gloves. Best Corded Circular Saws: Which One Should You Pick? Cutting concrete with a power saw produces enormous amounts of dust. Rather than setting your saw at a miter, leave it at 90 degrees and cut from the side of the blocks. Place the block down on a surface that will prevent it from vibrating and thus, moving. Depending on the thickness of the concrete, you may have to raise the blade and cut through only a portion of the paver. The easiest would be with a circular saw and a masonry cutting blade. Cutting concrete blocks can be done a few different ways. 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. Score the length of the cut three or four times with the chisel. A circular saw with a masonry blade can also be used to either score or completely cut through the block. Each material has an indicated type of blade which you can find in the hardware store or online. With the diamond blade placed on the point marked out, pull the trigger of the circular saw to start cutting. Luckily, this article will highlight the easy steps, tips, and tools needed to effectively cut through concrete blocks in seconds. 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. You can change the blade if you need … Make a series of passes until you have cut through the concrete block. After choosing the proper blade, install the blade on the saw. Make sure you have the right blade and that the blade is not dull to avoid kickback. The reason a diamond blade is advised for cutting concrete is that it is capable of ripping through the hardest of materials. Though the circular saw can cut through concrete blocks, this doesn’t mean you can just pick up your circular saw, plug it in and start cutting concrete blocks. the dry cutting blades are specially designed so they expel the heat quickly by making segmented teeth on the blade. Inspect every part of the saw before and during the task. 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. Squeeze the trigger gently until the blade begins to move. Diamond rim masonry blades can cut concrete block when used on a circular saw. To fix in the diamond blade, slide the blade cover backward. Don’t bring your face close to the surface area while sawing if you are using the dry cutting method. Each method comes with a type of diamond blade that suits it. Make sure the surface that you want to cut is clean. Use both hands to hold and support the saw firmly in place while cutting, Mark out the line you want to cut through with chalk or sharp rod, Ensure the diamond blade is properly fixed in the saw before you begin cutting, Take breaks. Set the saw blade so it will cut about 1/4 inch to 1/2 inch deep. Contrary to the dry blades, wet blades always must have water added to it during the cutting process. 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. Why Should You Use Circular Saw To cut Concrete Blocks? 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. Try using a concrete saw. Remove the screw and the washer. This will keep the saw from scratching the concrete surface as you cut. However, certain building needs require different sizes and make of blocks. A 7” circular saw, for instance, can only cut to 2-¼ inches deep, meaning you’ll need to sledgehammer the rest of the concrete away; a 14” wet-cutting blade … This step depends largely on your purpose for cutting. When attached with the correct blade, the saw is capable of cutting just about any material from steel to concrete. 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. He used to own a local shop where he sold different tools for 20+ years. So, let’s get to it. Cutting concrete blocks is a daunting task because of the materials that were put together to make the block. Take a tape measure and measure the length of the space where the cut cinder block will fit. The marks act as the guidelines on wear the circular saw blade will pass. 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