Model # 48-89-2723
The Milwaukee 48-89-2723 17/64 in. Thunderbolt Black Oxide Drill Bit is recommended for use with portable drills. This drill bit features black oxide construction, and the thick core offers durability and protection against side-load breakage. The parabolic flute form helps clear away chips and debris to keep the bit cool, and the secure-grip shank won't slip in the drill chuck.