Skip to content
Shop Your Local Store Ship to Your Hometown Store
Pro & Contractor Accounts Apply for Net Terms
100,000+ Products Trusted Authentic Brands

Milwaukee Red Helix 7/32 in. X 3-7/8 in. L Steel Thunderbolt Drill Bit 3-Flat Shank

A 3-flat shank keeps this cobalt bit locked in place while drilling through tough metal.
Milwaukee MPN 48-89-2311
Sold Locally Only

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

Typical Store Price i
Typical store price: low $8.99, average $10.99
In-Store Exclusive

This one's worth the trip to the store.

Brands like Weber, Milwaukee, Yeti, and DeWalt restrict where their products can be sold online — and for good reason. In-store buyers get authentic products, full manufacturer warranty, and access to pricing that simply isn't allowed to be advertised on the web.

  • Authorized dealer network · Full manufacturer warranty & support
  • Guaranteed authentic · No counterfeits, no gray-market resellers
  • The brands set these standards · Be wary of sellers who don't follow them
Why isn't this online? The whole story →

About Product Overview

Milwaukee's 7/32" cobalt drill bit is built for drilling into hardened steel and other metals that chew through standard bits. The Red Helix design and cobalt coating help it stay sharper longer under heat and friction, while the 3-flat shank keeps it locked in your chuck instead of spinning out under load.

Part of the Thunderbolt line, this bit measures 3-7/8" overall with a 2-3/4" flute length, giving you enough reach for most drilling jobs without sacrificing rigidity.

  • Diameter: 7/32 in.
  • Finish: Cobalt coated for heat resistance and durability
  • Shank Type: 3-Flat shank for secure chuck grip
  • Overall Length: 3-7/8"; Flute Length: 2-3/4"
  • Material: Steel

The Details Specifications

Brand Milwaukee
UPC 045242188260
Case Pack Quantity 5 per case
Retail Unit Quantity 1
Dimensions (L × W × H) 0 × 2 × 6
Weight 0 lbs
Country of Origin SOUTH KOREA
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab
Shop Local · Support Independent

Every order helps keep your local hardware store on the corner.

Why we built NHG
You might find it for less locally. Independent retailers often offer competitive pricing — some products are even cheaper in-store than online.
Real expert advice — not search results. Independent hardware staff know their inventory and the local conditions you're working in.
Keep the neighborhood working. Every dollar spent at an independent retailer returns roughly 3x more to your local economy than at a national chain.

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare

Compare