CRL 9/16" HBT Series Belgian Thread Electro-Formed Diamond Drill Cleaners Polishes and Protectors NEVER use in any type

NEVER use in any type of hand drill

It must be approximately 25% wider than the joint to fit tightly

No Bond Breaker Needed

CRL M64 is durable

CRL 9/16" HBT Series Belgian Thread Electro-Formed Diamond Drill Cleaners Polishes and Protectors NEVER use in any typeFor 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)