CRL 5/16" PD Straight Series Metal Bond Diamond Drill Plated Diamond Drill Bits a special size and weight

a special size and weight steel ball was selected for its outstanding performance

to prevent distortion

Meets or exceeds Federal Specifications TT-S-001543A (COM-NBS) Class A for silicone building sealants

material has a shelf life of three years from the date of manufacture (found on the bottom of the can)

For Tripod and Cup Style Drilling Machines

CRL 5/16" PD Straight Series Metal Bond Diamond Drill Plated Diamond Drill Bits a special size and weightDesigned 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