DeWALT DW5803 Drill Bit, 1/2 in Dia, 13-1/2 in OAL, U Flute, 2-Flute, 45/64 in Dia Shank, SDS Max Shank

Featuring a carbide tip that maximizes surface contact and a U-flute to clear debris, DeWALT SDS max masonry drill bits aren't just fast, they're ultra-durable. An open-head design channels dust into flutes for efficient drilling and a hardened core helps to reduce bit breakage.