Model # 48-89-2772
The Milwaukee 48-89-2772 1/4 in. Thunderbolt Black Oxide Drill Bit is recommended for use with portable drills. This drill bit features a parabolic flute form to clear chips and debris to keep the bit cool, and the thick core offers protection against side-load breakage. The black oxide construction provides durability, and this drill bit is excellent for drilling on curved surfaces.