CRL 3-1/2" DCD Series Straight Shank Electro-Formed Diamond Drill Copolymer Strips 3" x 21" (76 x

3" x 21" (76 x 533 mm)

Perfect for Teller Window Openings

a ring cap that accepts wide tip cone nozzles

and water-resistant

3M® Fire Barrier Sealant expands to fill and hold the penetration closed

CRL 3-1/2" DCD Series Straight Shank Electro-Formed Diamond Drill Copolymer Strips 3" x 21" (76 xFor 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" x 3 8" (35 x 10 mm) diameter