Mark your cutting line onto the concrete using a 2-by-4 as a straightedge to guide the chalk. Measure the area where you’ll install the cut cinder block. To install the blade, first, check that your saw is turned off and unplugged. Luckily, this article will highlight the easy steps, tips, and tools needed to effectively cut through concrete blocks in seconds. You need to plan your cut before practically engaging in it. If you want to buy any other type, just make sure that the RPM is above 3000 just to increase the cutting speed. Depending on the thickness of the concrete, you may have to raise the blade and cut through only a portion of the paver. With all the basic and innovative techniques, this was all about the Circular Saws and how to cut concrete blocks with Circular Saw. You'd have a very hard time keeping a miter cut flat. 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. 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. 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. This will not allow you to cut well. This will keep the saw from scratching the concrete surface as you cut. 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. 8. How to cut concrete blocks with a circular saw? Cutting cleanly through concrete blocks is not a task that can be executed with just any saw or power tool. These dust particles can affect the blade you are using and also the result you will get when you complete the task. He now enjoys researching DIY tools and writing guides about it. Cut in several steps, say 3/4 to 1" at a time. Make a series of passes until you have cut through the concrete block. Best Corded Circular Saws: Which One Should You Pick? For cutting masonry blocks with a circular saw, the most important thing is using an appropriately sized diamond blade. 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. Itâs 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. When you have completed the steps above, place the diamond blade on the marked point of the concrete block. He used to own a local shop where he sold different tools for 20+ years. Best Spray Guns For Plasti Dip – Give Your Car A New Look! Before we get started, you should follow these tips: Wear all your protective gear. The reason a diamond blade is advised for cutting concrete is that it is capable of ripping through the hardest of materials. It would be great if you could buy precut blocks also. Regular concrete blocks are usually measured in inches or millimeters. Back the saw out after about 30 seconds to avoid overheating. This generates power for the circular saw. Put a strip of duct tape along the bottom of the saw body where it runs against the concrete. If the blade can saw through concrete, think of what it could do to your fingers. Now turn on the circular saw and carefully bring it down on the outline and start cutting. 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. It can cut materials such as masonry, metal, plastic, and wood, and can be either mounted to a machine or hand-held. With the diamond blade, the teeth are usually angled downwards like the shape of a comma (the punctuation mark). Place the shoe of the reciprocating saw against the cinder block with the blade directly above the cut-line. If you have a blade in the circular saw, you need to remove it, so you can attach the diamond blade. The circular saw has to be hands down one of the most aggressive power cutting tools ever made. 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. Fixing the serrated diamond blade is a tad different from regular blades. 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. 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. 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. Characteristics of the concrete you need to know include the compressive strength, the size and … To cut concrete with a 15-amp circular saw, start by using chalk to mark cut lines on the surface of the slab. If you are using a battery-operated saw, remove the battery and switch off the saw. 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, itâ€™s a composite material. This step depends largely on your purpose for cutting. Before we get started, you should follow these tips: Make sure the surface that you want to cut is clean. Donât bring your face close to the surface area while sawing if you are using the dry cutting method. Try using a concrete saw. 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. If you are using a battery-powered saw, slot in the battery. Then take out the blade. Rather than setting your saw at a miter, leave it at 90 degrees and cut from the side of the blocks. The scarifier doesn't really slice the way you think a traditional blade on a circular saw does. All you have to do is mark out the curve on the block and follow the curved line. The circular saw however is one tool that can cleanly cut through concrete easily, leaving you with desired and accurate results. You will need to move the saw blade back … Operating circular saws aren’t difficult enough. 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. Attach the blade and the washer, and then tighten the screws. It has a blade that can usually cut 1/4" or so deep up to several feet wide of concrete per pass. 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. There are several types of blades; each has its own use. Also, check out other articles and posts on this website. If your cut doesn’t need to be exact, use a cold chisel and hand sledge to cut the concrete. The teeth of the blade should be facing in the direction that you will be cutting. For a larger project or more accurate cuts, a circular saw with a concrete blade is a good option. Have a superb cutting experience. 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. The steps above will also work well if you need to cut curves in the concrete block. The diamond blades are even better than the masonry abrasive ones. While you can find vacuum systems designed to collect the dust material, the systems aren't fully effective. However, if you need to cut concrete blocks constantly, it would be convenient for you to buy or rent a concrete saw. You will enjoy reading them. If more than a handful, diamond may be the way to go. A circular saw with a masonry blade can also be used to either score or completely cut through the block. 7. Tools Needed: Step 5 Lower the end of the blade to the cut-line, keeping the shoe of the saw against the cinder block. This isnât as hard as it sounds. Methods of Using a Circular Saw to Cut Concrete Blocks; How to cut concrete blocks with a circular saw? Here, we are dealing with the strongest material on earth, the diamond. 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. Plugin the circular saw if you are using an electric saw. Remove the screw and the washer. So, letâs get to it. In fact, there are specific saws that are designed for concrete cutting which are called â€śconcrete sawsâ€ť but theyâ€™re a little bit pricey, but circular saw are efficient and can do it flawlessly. Each method comes with a type of diamond blade that suits it. The water eliminates the problem of dust particles and also cools the blade while working. Cutting concrete blocks is a daunting task because of the materials that were put together to make the block. 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. Push the blade of the saw to and from while cutting to ensure the blade cuts evenly. Cutting concrete with a circular saw requires care, precision, and the right tools. Why Should You Use Circular Saw To cut Concrete Blocks? Be sure to leave a comment below if this article made your task easier. Contrary to the dry blades, wet blades always must have water added to it during the cutting process. Score the length of the cut three or four times with the chisel. After choosing the proper blade, install the blade on the saw. It can cut materials such as masonry, metal, plastic, and wood, and can be either mounted to a machine or hand-held. Common concrete blocks are made with concrete, sand, and gravel. 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 sawâ€¦etc. Your safety is vital when using any tool. 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. If yours doesnât have the switch, use a wrench to loosen the bolt holding the blade in place. Make sure you have the right blade and that the blade is not dull to avoid kickback. How To Use Reciprocating Saws To Cut Trees? You canât remove a blade if it is spinning around as you try to unscrew it. For example: A masonry abrasive cutting blade is inexpensive, so they are affordable but the bad side is that the cutting speed is not good, you will take a longer time to cut your concrete block as well as they wear so quickly, and you have to replace it from time to time if you have a lot of jobs to do with it. With the variety of the circular saw models and being versatile enough, these saws offer you with the corded and cordless functions and features. Step 3: Start the cutting slowly and donâ€™t force the blade or the circular saw, just let the machine do the cutting by itself and you do the feeding slowly. 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 itâ€™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. Marking out the area is like marking out the route the blade will follow. An angle grinder equipped with a concrete-cutting blade makes straight sharp-edged cuts in a concrete block's surface. 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 dry cutting blades are specially designed so they expel the heat quickly by making segmented teeth on the blade. Modern circular saws have a âblade release switchâ that allows you to remove the 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. How to cut concrete blocks with circular saw? Make sure you have the right blade and that the blade is not dull to avoid kickback. The type of circular saw doesnâ€™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 Iâ€™ve already tried it withÂ theÂ DEWALT DW4701Â bladeÂ for cutting retaining wall blocks. You need a diamond cutting blade with your circular saw to accurately cut clean through the block without damaging it. 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. 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. Cut the block, allowing the saw and blade to do most of the work — don't apply too much force. Don’t force a blade into a cut. Methods of Using a Circular Saw to Cut Concrete 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. 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 are a contractor and doing many concrete cutting jobs, aim for the diamond blades. 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. Saw … There are two methods that can be used when using a circular saw to cut concrete blocks. Secondly, slide the blade cover and make sure the blade is locked firm. Place the block down on a surface that will prevent it from vibrating and thus, moving. The easiest would be with a circular saw and a masonry cutting blade. Â for cutting retaining wall 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. Simply use your circular saw and diamond blade to cut completely through the block. Hold the saw firmly in place with both hands and turn on the saw. What are the tools required for cutting concrete blocks? Therefore, I advise you to wear a respirator or dust mask. 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 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. The concrete block varies in size and thickness. Diamond rim masonry blades can cut concrete block when used on a circular saw. Though your eyes are protected, the debris can still hit any part of your face. Inspect every part of the saw before and during the task. Though the circular saw can cut through concrete blocks, this doesnât mean you can just pick up your circular saw, plug it in and start cutting concrete blocks. Be sure of the places you want to cut and mark the concrete blocks with the chalk line. Cutting concrete blocks can be done a few different ways. Small rough cuts can be made using a sledgehammer and cold chisel. With regular circular saw blades, you fix the blade in the saw with the teeth angled upwards. 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 are cutting because you need both sides of the concrete block, then hitting it will not be your best bet. Mark the cut and clamp the stone or paver to a stable work surface. When the dust becomes airborne, it's possible to inhale it into your lungs, which can create severe health problems. When cutting through concrete blocks, there is usually a large amount of dust and sand that is sawed out. These types of reinforced blocks are used in the construction of dams and used in building foundations. Consider using bright orange chalk powder. When you are done with the steps above, you should be proud of the cutting result. 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