Clearance For Installing a Tablesaw Throat Plate
If you install a blank insert in your tablesaw’s blade opening, and bring the spinning blade up through it (making sure to hold down the insert in the process), you’ll create a zero-clearance slot that will prevent splintering on the bottom side of cuts. However, on some tablesaws, a standard 10-in. blade can’t be lowered enough to clear the bottom of a blank insert. To create the small bit of additional clearance needed, without weakening the plate, I drill a series of overlapping counterbores, using a 1⁄2-in.-dia. Forstner bit. This is easier than setting up a router cut, and better than ripping a shallow slot down the entire plate.
John Cuismano, Lansdale, PA