CRL 3/16" PD Straight Series Metal Bond Diamond Drill Portable Sanders Polishers & Accessories There are center reference marks

There are center reference marks inscribed on the outside of the drill housing for easy line up of your holes

They are intended for the drilling of flat (plate) glass ONLY

field glass drilling nightmares are a thing of the past

acetic cure silicone sealant

CRL Manufacturing will evaluate the drill at no charge to the customer

CRL 3/16" PD Straight Series Metal Bond Diamond Drill Portable Sanders Polishers & Accessories There are center reference marksDesigned 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