Hi-Tech Diamond lamp glass grinder bit is used for shaping and grinding the edges of glass pieces. If you’re a glass artist, these grinder bits are essential. But these grinder bits aren't just for glass. These workhorses are great for shaping all kinds of material, including stones, tile and ceramic!

Lamp glass grinder bit angle measurements:
Upper angle:  8 degrees
Lower angle:  18 degrees

We have a large variety of different grits, ranging from 60# to 600#, in sizes that fit 3/8″ arbors and 5/16″ arbors. All grinder bits are 1" diameter and come with a set-screw Allen wrench and square-shaped sponge to keep your glass piece cool while you work.

Don’t see the grit you want in the size you need? We have an adapter for that! Our  is designed to convert glass grinder bits with 3/8" arbor holes into glass grinder bits with 5/16" arbor holes. This adapter makes it possible for all glass grinder bits to fit onto all lap machines.

IMPORTANT PURCHASING NOTE: The 3/8" arbor size grinder bits are specially designed to fit onto both and lap machines ONLY. . The 5/16" arbor size grinder bits are designed to fit onto other glass grinder machines that accept a 5/16" arbor.