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Milwaukee Thunderbolt 48-89-2829 black oxide drill bits are made for durability and long life. The Thunderbolt web has a thicker core than standard bits for strength and to minimize side-load breakage. The parabolic flute quickly clears chips to keep the bit cool. The precision-start, 135-degree split point tip ensures accurate holes without walking. Designed for curved surfaces, these bits require less effort and work well with portable drills. The 3-flat secure-grip shank prevents slipping in the chuck. The reduced shank diameter fits in 3/8 inch chucks.
Designed for metal, wood, and PVC, these Milwaukee Thunderbolt bits come in a durable black oxide finish.
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