Here’s how to safely cut a blade slot in a new zero-clearance tablesaw insert. With the blade all the way down, lock the rip fence in place over the right edge of the insert. Clamp the fence at the back. Next, make a temporary long-reach clamp with a clamp, two scrap blocks, and a piece of long stock. The long stock should reach from the edge (or front or back) of the tablesaw to near the center of the left side of the insert. Now you can safely raise the blade through the secured insert with your hands well clear of the blade area. Jim Richey
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