Newer Craftsman/Rigid Zero Clearance Insert (After 1988) by Peachtree Woodworking PW953 The insert is blank so you can custom fit the blade slot by passing your blade through it. Helps to prevent tear-out plus close the large factory gap. Fits most (1988 and newer) 10" Belt Drive Models, Ridgid TS-2412, TS-2424 & TS-2400 14" x 3 3/4" x 3/16"