CRL 1/2" HBT Series Belgian Thread Electro-Formed Diamond Drill Sandblasting Tools The thumb-activated instant pressure release

The thumb-activated instant pressure release button prevents sealant run-on

Contains a Fungicide for Mildew Resistance

UL 1479 Firestops

Packed 12 per box

CRL 1/2" HBT Series Belgian Thread Electro-Formed Diamond Drill Sandblasting Tools The thumb-activated instant pressure releaseFor 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