Master lap Diameter:6" The 40317 grinding/drilling bit adapter

The 40317 grinding/drilling bit adapter is required to use these individual diamond drill bits

Watts in: 97

Table size: 10-3/4" wide x 9" deep

Our bits fit most American and German-made glass grinders and some Chinese models as well

Sintering produces a uniform matrix of diamond crystals embedded in a strong

Master lap Diameter:6" The 40317 grinding/drilling bit adapterThis clear, acrylic master lap provides a flat surface to back your diamond discs and polishing pads for a smooth operation. Use on the SwapTop 6 flat lap machine or any flat lap machine that accepts 1 2 arbors. 6 and 8 diameters available. Specifications Diameter: 6" (152 mm) and 8" (203 mm) Arbor hole: 1 2" (12 mm) Thickness: 1 4" (6. 35 mm)