CRL 2-1/8" PDT Belgian Series Metal Bond Diamond Drill Caulking | Sealants | Adhesives along with many other types

along with many other types of dirt and grime

Whichever you choose

Keep a few spares on hand

Comes with 10 Abrasive Belts (two each of five different grits)

and oil-based foods

CRL 2-1/8" PDT Belgian Series Metal Bond Diamond Drill Caulking | Sealants | Adhesives along with many other typesDesigned for High Volume Glass Fabrication 3 8" Diamond Matrix Depth Two Mounting Styles to Choose From, Straight Shank or Belgian Thread CRL PD and PDT Series Metal Bond Diamond Drills use a special diamond and brass bond for maximum performance in glass. Metal Bond Drills offer the longest life of any type of diamond drill; 1,000 to 2,000 holes in 1 4" (6. 4 mm) glass with proper maintenance and the use of a wet Sharpening Stone to expose fresh