The Milwaukee 48-89-2728 11/32 in. Thunderbolt Black Oxide Drill Bit includes a thick core for strength and protection against side-load breakage. The parabolic flute form helps clear away chips and debris to keep the bit cool, and the black oxide construction is durable. This bit is excellent for drilling on curved surfaces and 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° split point, precision start no walking
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