CRL 5/16" HBT Series Electro-Formed Diamond Drill Self-Oiling Cutters Features include an efficient dust

Features include an efficient dust collector

It contains adhesion promoting additives for excellent glass-to-glass adhesion

CRL can supply them quickly at prices you'll find hard to beat

110V AC motor

but it works best in a regular power drill

CRL 5/16" HBT Series Electro-Formed Diamond Drill Self-Oiling Cutters Features include an efficient dustFor Fast Cutting, High Production Runs Extended Work Life Two Mounting Styles to Choose from Straight Shank or Belgian Type 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 Series features an extra long 1 3 8" by 3 8" (35 by 9. 5 mm)