Big Horn 18413 Table Saw Insert Delta Style. Fits Delta & other saws with a 3-3/4" x 13-3/8" opening including Powermatic #63, Grizzly & other imports. Eliminate spaces between blade and saw insert where little pieces fall and no work support is provided. A must for working with veneers and melamine. Also excellent with dado blades. All inserts have fitting nubs, leveling screws with allen key and rear stabilizing pin.