General International Table Saw Zero Clearance Insert by Peachtree Woodworking PW958 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 Model #'s: 50-175, 185, 250, 260 12 9/16" x 3 9/16" x 7/16" - Made of UHMW