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Milwaukee Thunderbolt 31/64 in. X 5-7/8 in. L Drill Bit 3-Flat Shank
Milwaukee Thunderbolt 31/64 in. X 5-7/8 in. L Drill Bit 3-Flat Shank
Milwaukee Thunderbolt 31/64 in. X 5-7/8 in. L Drill Bit 3-Flat Shank
Milwaukee Thunderbolt 31/64 in. X 5-7/8 in. L Drill Bit 3-Flat Shank
Milwaukee Thunderbolt 31/64 in. X 5-7/8 in. L Drill Bit 3-Flat Shank

Milwaukee Thunderbolt 31/64 in. X 5-7/8 in. L Drill Bit 3-Flat Shank

A black oxide finish and 3-flat shank keep this bit gripping tight and cutting clean, even under heavy torque.
Milwaukee MPN 48-89-2737
Sold Locally Only

This product isn’t sold on our website — see your local hardware store.

In-Store Exclusive

This one's worth the trip to the store.

This Milwaukee item is one you'll find in stores rather than online — and that's often the better way to buy. In store you get the genuine article, full manufacturer warranty, and real advice from someone who's actually handled it — no counterfeits, no gray-market resellers.

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About Product Overview

This 31/64" black oxide drill bit from Milwaukee's Thunderbolt line is built for drilling through wood, plastic, and metal without giving out halfway through the job. The black oxide finish resists heat buildup and adds corrosion resistance, so the bit holds its edge longer than a standard bright-finish bit. The 3-flat shank seats securely in your chuck and helps prevent slipping under torque, a common problem with larger bits.

  • Drill size: 31/64"
  • Shank diameter: 3/8" with 3-flat design
  • Flute length: 4-3/8", overall length: 5-7/8"
  • Material/finish: Black oxide
  • Sold individually, carded packaging

The Details Specifications

Brand Milwaukee
Model / MPN 48-89-2737
UPC 045242167104
Weight Under 1 lb
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab
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