Bosch IMSDC2 3/16 in. to 7/8 in. High-Speed Steel Turbo Impact Step Drill Bit

Turbo impact-rated step drill bit design made for smooth drilling in cordless drills using drills and impact drivers | Balanced double flute helps to eliminate chatter and vibration | Sharp cutting edges provide consistent hole quality | Various step depths designed for cutting holes for common applications, various sizes of conduit and even knockout holes | Hex shank impact ready step drill bit optimized for impact drivers, and the bits are drill/driver compatible