SET OF 4 ZERO CLEARANCE INSERTS CUSTOM MADE FOR SKIL 10 IN. TABLE SAW (SPT-99). ***RIVING KNIFE CANNOT BE USED WITH THIS INSERT***. THESE ARE IDEAL FOR PRECISE CUTTING AT 90 DEGREE CUTS ONLY. CUT IN THE USA FROM MEDIUM DENSITY MDF, PAINTED SIDE BLUE. .****DO NOT BUY FOR THE TS-6307-00 MODEL***. THAT MODEL HAS A DIFFERENT TYPE OF INSERT ALSO FOR SALE IN OUR SHOP. CHECK YOUR SAW MODEL BEFORE PURCHASING. THESE INSERTS CANNOT BE USED ON THE 8 1/4" SPT-99 SAW..