The Milwaukee 48-89-2734 7/16 in. Thunderbolt Black Oxide Drill Bit is an excellent choice for use with portable drills. The black oxide construction provides durability and the thick core protects against side-load breakage. The parabolic flute form helps clear chips and debris to keep the drill bit cool and this bit is excellent for drilling on curved surfaces.
- 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
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