The Milwaukee 48-89-2733 27/64 in. Thunderbolt Black Oxide Drill Bit for drilling on curved surfaces. This drill bit features black oxide construction, and the thick core offers protection against side-load breakage. The parabolic flute form helps clear chips and debris to keep the drill bit cool.
- Thunderbolt web, provides longer life and faster driller times
- Parabolic flute, clears chips faster
- Black oxide construction for durability
- 135° split point, precision start no walking