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Inserts

The scary part of cutting the slot in a zero-clearance tablesaw throat-plate insert is raising that spinning 10" blade through the uncut plate. For a bit of confidence and security when you make the cut, try this simple technique.First, install one of the outer blades from your dado set on your tablesaw. (Because of its smaller circumfer-ence, this blade doesn't have to work as hard to cut through the insert.)Next, clamp a scrap board over the new insert, as shown in top drawing, and raise the spinning dado blade through the insert to its maximum height. Finally, replace the dado blade with your 10" blade and repeat the procedure.—Chris Penkala, Seattle