Professional Grade. 6 inch Barrel length. Laser Weld Technology. Uniquely engineered for DRY drilling into Cured Concreteand Hard Masonry Materials. Fluted core barrells for quick material evacuation. M18 Female thread ~ Adaptes to most Hand Drills 2,000 to 2,500 RPM. 12'' Extension Accessory available (Part# EXT12M18).
Cobra Dry bits are engineered to drill reinforced concrete and hard masonry materials with no water.