The Milwaukee 48-89-2771 3/16 in. Thunderbolt Black Oxide Drill Bit features a parabolic flute form to clear chips and debris to keep the bit cool. The black oxide construction provides durability, and this drill bit is excellent for drilling on curved surfaces. The thick core offers protection against side-load breakage, and this drill is recommended for use with portable drills.
- Thunderbolt web, provides longer life and faster driller times
- Parabolic flute, clears chips faster
- Black oxide construction for durability
- 135-degree split point, precision start no walking