Bosch Bulldog HCFC2040 Hammer Drill Bit, 1/4 in Dia, 4 in OAL, Variable Flute, 2-Flute, 25/64 in Dia Shank

Full head carbide tip lasts longer for faster drilling speed and less carbide wear, the centric conical tip guides bit through concrete, provides rounder holes. Wear mark alerts the user when bit has worn to a level inappropriate for precision anchoring.