The Milwaukee 48-89-2717 11/64 in. Thunderbolt Black Oxide Drill Bit features black oxide construction for a long life and fast drill times. The parabolic flute form helps clear chips and debris away to keep the bit cool, and the precision-start, 135-degree split-point tip starts on contact to ensure fast and accurate drilling. 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-degree split point, precision start no walking