Master lap Diameter:6" Works right on top of

Works right on top of larger diamond drums

Its versatile design allows you to create smooth curves

and polishing of glass edges—perfect for stained glass

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

Master lap Diameter:6" Works right on top ofThis 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)