I just cut it about 3/4" to an inch deep and then hit it with a chisel & hammer to break it off. 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. Cut the block, allowing the saw and blade to do most of the work — don't apply too much force. 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 … For a larger project or more accurate cuts, a circular saw with a concrete blade is a good option. These saws can cut through both the mortar and the block itself. $5 $2-$5. Remove the saw blade and start in … Turn on the saw and slowly guide the blade into the concrete. $10 angle grinder and $2 concrete cutting wheels (or $10 diamond wheel) Find someone who is laying pavers, they'll have a large water cooled diamond saw. See how to modify or split blocks from the AB Courtyard Collection by Allan Block. trade them a brewski for cutting your block on the mark. In this post we will explain how to cut cinder blocks without saw. 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. diamond hacksaw blades are a thing if you're patient. Make a series of passes until you have cut through the concrete block. 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. If the blade isn’t labeled for stone, it won’t cut through the pavers. If you can’t get hold of a wet cutting concrete block saw, do not worry. Power Saw and Concrete Blade. 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. A 7" blade looks to be in the 20-30 dollar range. For years I used a cheap 7.25" circular saw with a cheap masonry blade. 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. A power saw produces a cleaner, more even cut than does chiseling. I live far enough from any rental places that it would be a full day rental. It can be a simple task to complete and as easy to perform as sawing a … 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. The chop saw will likely put out a LOT more dust, but will make smooth, straight cuts without having to struggle to get it through the block. 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