CRL 2-1/2" PDT Belgian Series Metal Bond Diamond Drill Caulking & Urethane Heaters/Coolers The Port-O-Holer Glass Drilling Tool

The Port-O-Holer Glass Drilling Tool drills holes up to 2" (51 mm) in diameter in glass and mirror

located inside of each of these valves is an automatic shut-off which prevents unwanted leaking of coolant

Fast Curing to a Durable

2245171 Locking Nut

CRL 2-1/2" PDT Belgian Series Metal Bond Diamond Drill Caulking & Urethane Heaters/Coolers The Port-O-Holer Glass Drilling ToolDesigned 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