CRL 3-3/4" PD Straight Series Metal Bond Diamond Drill Deglazing Tools They hold securely between the

They hold securely between the cartridge and the end of the caulking gun

more consistent scoring

when drilling glass

(1) PLS RRT4 Red

Made of Tough

CRL 3-3/4" PD Straight Series Metal Bond Diamond Drill Deglazing Tools They hold securely between theDesigned 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