This is dangerous to both the worker using the saw … One of the problems associated with the use of a masonry saw is that, when used to cut brick, concrete block and masonry, heat build-up and stress can cause portions of the blade to break off and be thrown at a high rate of speed. $5 A power saw produces a cleaner, more even cut than does chiseling. Cut the block, allowing the saw and blade to do most of the work — don't apply too much force. Make a series of passes until you have cut through the concrete block. Also it would seem difficult to make a decent 45 degree cut with a large demo saw. If you're going to use the bigger saw, I might advise practising once or twice, in the middle of the area you're going to remove, to make sure you can control it … Mark the cut and clamp the stone or paver to a stable work surface. 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. Power Saw and Concrete Blade. Remove the saw blade and start in … My thought is to make a jig to hold the blocks and make the cut and use a circular saw with some type of masonry diamond blade. Cutting concrete with your hands requires the use of a masonry chisel and hammer. trade them a brewski for cutting your block on the mark. For a larger project or more accurate cuts, a circular saw with a concrete blade is a good option. diamond hacksaw blades are a thing if you're patient. This is a very physical task that requires skill and precision in order to avoid cutting too much concrete or causing it to crack unnecessarily. $2-$5. 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. In this post we will explain how to cut cinder blocks without saw. A 7" blade looks to be in the 20-30 dollar range. I live far enough from any rental places that it would be a full day rental. If the blade isn’t labeled for stone, it won’t cut through the pavers. 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. It can be a simple task to complete and as easy to perform as sawing a … I just cut it about 3/4" to an inch deep and then hit it with a chisel & hammer to break it off. STEP 4. For years I used a cheap 7.25" circular saw with a cheap masonry blade. How to cut concrete without a saw. These saws can cut through both the mortar and the block itself. Hold the concrete saw up to the wall and line up the blade with the line. If you can’t get hold of a wet cutting concrete block saw, do not worry. Use a circular saw equipped with a masonry blade, or a concrete saw to cut through a block wall when adding a new door or window. 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