Attributes . (25) 1/2 in x 4 in x 6 in SDS-plus(R) Bulldog(TM) Xtreme Carbide Rotary Hammer Drill Bits, (10) 1/4 in x 4 in x 6 in SDS-plus(R) Bulldog(TM) Xtreme Carbide Rotary Hammer Drill Bits . Names