The blade can be made from many materials, but in our case, we will focus on three types designed specifically for our job: They are all can be used in cutting concrete, but each one has its own advantages and disadvantages. Make sure you have the right blade and that the blade is not dull to avoid kickback. 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 scarifier doesn't really slice the way you think a traditional blade on a circular saw does. Depending on the thickness of the concrete, you may have to raise the blade and cut through only a portion of the paver. The concrete block varies in size and thickness. 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 with a masonry blade can also be used to either score or completely cut through the block. 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. An angle grinder equipped with a concrete-cutting blade makes straight sharp-edged cuts in a concrete block's surface. Also, check out other articles and posts on this website. Simply make a line on the concrete block, so you know which part you want to cut. 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. It can cut materials such as masonry, metal, plastic, and wood, and can be either mounted to a machine or hand-held. When the dust becomes airborne, it's possible to inhale it into your lungs, which can create severe health problems. If you want to cut some concrete blocks, cut a wall or slab or whatever you want, then you need to do it the right way. Cut in several steps, say 3/4 to 1" at a time. The water eliminates the problem of dust particles and also cools the blade while working. 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. The steps above will also work well if you need to cut curves in the concrete block. Common concrete blocks are made with concrete, sand, and gravel. 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. Methods of Using a Circular Saw to Cut Concrete Blocks. The reason a diamond blade is advised for cutting concrete is that it is capable of ripping through the hardest of materials. After choosing the proper blade, install the blade on the saw. The teeth of the blade should be facing in the direction that you will be 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 However, if you need to cut concrete blocks constantly, it would be convenient for you to buy or rent a concrete saw. However, certain building needs require different sizes and make of blocks. Attach the blade and the washer, and then tighten the screws. Rather than setting your saw at a miter, leave it at 90 degrees and cut from the side of the blocks. Mark the cut and clamp the stone or paver to a stable work surface. If you want to buy any other type, just make sure that the RPM is above 3000 just to increase the cutting speed. How to cut concrete blocks with circular saw? Each material has an indicated type of blade which you can find in the hardware store or online. How To Use Reciprocating Saws To Cut Trees? This will not allow you to cut well. Tools Needed: How to cut concrete blocks with a circular saw? You need to plan your cut before practically engaging in it. Inspect every part of the saw before and during the task. Set up workhorses or, preferably, a work stand with adjustable sides to secure the pavers. Cutting concrete blocks can be done a few different ways. If you are cutting because you need both sides of the concrete block, then hitting it will not be your best bet. These dust particles can affect the blade you are using and also the result you will get when you complete the task. However, a circular saw that has a special blade is the best choice. Small rough cuts can be made using a sledgehammer and cold chisel. If you are using a battery-operated saw, remove the battery and switch off the saw. The rest of the blockwork can be quite quiet other than the block cutting. It can cut materials such as masonry, metal, plastic, and wood, and can be either mounted to a machine or hand-held. You will need to move the saw blade back … 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. This isn’t as hard as it sounds. You'd have a very hard time keeping a miter cut flat. Step 1: Mark off the cutting path with the chalk line. Now turn on the circular saw and carefully bring it down on the outline and start cutting. Modern circular saws have a “blade release switch” that allows you to remove the blade. The easiest would be with a circular saw and a masonry cutting blade. To be able to cut concrete with circular saw, the thickness must not exceed 15 cm max or things may become difficult. You can’t remove a blade if it is spinning around as you try to unscrew it. Why Should You Use Circular Saw To cut Concrete Blocks? If you are a contractor and doing many concrete cutting jobs, aim for the diamond blades. This will keep the saw from scratching the concrete surface as you cut. A concrete block is a rectangular block used in construction. Measure the area where you’ll install the cut cinder block. The diamond blades are even better than the masonry abrasive ones. Each method comes with a type of diamond blade that suits it. Concrete is a mix of sand, gravel, cement and water, and it is everywhere. Here, we are dealing with the strongest material on earth, the diamond. 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. 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. Operating circular saws aren’t difficult enough. 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. With the diamond blade, the teeth are usually angled downwards like the shape of a comma (the punctuation mark). With regular circular saw blades, you fix the blade in the saw with the teeth angled upwards. With all the basic and innovative techniques, this was all about the Circular Saws and how to cut concrete blocks with Circular Saw. Make a series of passes until you have cut through the concrete block. Michael is the Editor at thetoolgeeks.com. So to protect yourself from cuts, use a pair of really thick gloves. There you go! Set the saw blade so it will cut about 1/4 inch to 1/2 inch deep. The goggles protect your eyes from flying debris like little stones and dust while the mask prevents you from inhaling dust particles. Best Corded Circular Saws: Which One Should You Pick? Press down on your saw’s arbor-lock to open and place the blade. 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. You can change the blade if you need … Firstly, make sure your saw is unplugged. Score the length of the cut three or four times with the chisel. Take a tape measure and measure the length of the space where the cut cinder block will fit. 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. There are two methods that can be used when using a circular saw to cut concrete blocks. It would be great if you could buy precut blocks also. What are the tools required for cutting concrete blocks? 7. 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. Squeeze the trigger gently until the blade begins to move. If you are using a battery-powered saw, slot in the battery. The dry cutting method: Dry cutting method involves using serrated or toothed diamond blades that can get rid of the sand particles while working. 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. When attached with the correct blade, the saw is capable of cutting just about any material from steel to concrete. The circular saw has to be hands down one of the most aggressive power cutting tools ever made. 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. Diamond rim masonry blades can cut concrete block when used on a circular saw. Your safety is vital when using any tool. If your cut doesn’t need to be exact, use a cold chisel and hand sledge to cut the concrete. 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. 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. While you can find vacuum systems designed to collect the dust material, the systems aren't fully effective. The wet cutting method: This method requires using a smooth diamond blade. 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. All you have to do is mark out the curve on the block and follow the curved line. When you have completed the steps above, place the diamond blade on the marked point of the concrete block. Cutting concrete with a circular saw requires care, precision, and the right tools. 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. These types of reinforced blocks are used in the construction of dams and used in building foundations. If yours doesn’t have the switch, use a wrench to loosen the bolt holding the blade in place. If you’re using a wet saw and the chalk is washing off, use a crayon so the line will stay. For a larger project or more accurate cuts, a circular saw with a concrete blade is a good option. Regular concrete blocks are usually measured in inches or millimeters. Have a superb cutting experience. Marking out the area is like marking out the route the blade will follow. 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