CRL 2" HBT Series Belgian Thread Electro-Formed Diamond Drill Glass Thickness Measuring Tools & Meters or you can order it

or you can order it separately

Crystal Clear Slimline Profiles

Slanted Walls Helps Stop Splashing

Do not apply to old urethane

After the surface has been cleaned

CRL 2" HBT Series Belgian Thread Electro-Formed Diamond Drill Glass Thickness Measuring Tools & Meters or you can order itFor Fast Cutting, High Production Runs Extended Work Life 1 2" Diamond Matrix Depth Two Mounting Styles to Choose From: Straight Shank or Belgian Type HBT Feature Belgian Mount (1 2 Gas) These CRL Electro Formed Diamond Drills are thin walled, with a 1 2" (12. 7 mm) deep multi layer of diamonds and bonding matrix designed for high speed, high production drilling. These drills give outstanding results when exacting conditions are met. The CRL DCD