How to Cut a Concrete Block With a Reciprocating Saw
- 1). Unplug the reciprocating saw, or lock the trigger to prevent accidental activation. Open the blade lock according to the manufacturer's instructions. Insert the tabbed end of the diamond-coated blade into the blade slot. Close the blade lock.
- 2). Measure and mark a line where you are going to cut the cinder block. Hold the cinder block securely with a clamp.
- 3). Plug in the reciprocating saw and unlock the trigger.
- 4). Place the shoe of the reciprocating saw against the cinder block with the blade directly above the cut-line. Squeeze the trigger gently until the blade begins to move.
- 5). Lower the end of the blade to the cut-line, keeping the shoe of the saw against the cinder block. Increase pressure on the trigger to speed up the blade once the blade begins cutting.
- 6). Maintain steady pressure on the back of the saw, allowing the blade to do the work. Keep the shoe against the block to help prevent kickback. Continue working the blade through the cinder block until the cut is complete.
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