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Milwaukee Thunderbolt 21/64 in. X 4-5/8 in. L Drill Bit 3-Flat Shank
Milwaukee Thunderbolt 21/64 in. X 4-5/8 in. L Drill Bit 3-Flat Shank
Milwaukee Thunderbolt 21/64 in. X 4-5/8 in. L Drill Bit 3-Flat Shank
Milwaukee Thunderbolt 21/64 in. X 4-5/8 in. L Drill Bit 3-Flat Shank
Milwaukee Thunderbolt 21/64 in. X 4-5/8 in. L Drill Bit 3-Flat Shank

Milwaukee Thunderbolt 21/64 in. X 4-5/8 in. L Drill Bit 3-Flat Shank

Enhance your drilling with the Milwaukee Thunderbolt 21/64 in. X 4-5/8 in. L Drill Bit 3-Flat Shank 1 pc for precision, durability, and efficiency.
Milwaukee MPN 48-89-2727
Sold Locally Only

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

Typical Store Price i
Typical store price: low $5.99, average $6.99
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 →
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.

About Product Overview

Step up your drilling game with the Milwaukee Thunderbolt 21/64 in. X 4-5/8 in. L Drill Bit 3-Flat Shank 1 pc. Designed for superior performance, this drill bit features a unique Thunderbolt design that ensures faster chip removal and less friction, allowing you to tackle your projects with ease and precision.

Crafted from high-quality materials with a sleek black oxide finish, this drill bit is engineered for durability and longevity. With a shank diameter of 21/64 inches and a 3-flat shank design, it guarantees a secure grip in your drill, minimizing slippage and maximizing efficiency during use.

  • Overall Length: 4-5/8 inches
  • Flute Length: 3-5/16 inches
  • Single Pack: 1 drill bit included

Whether you’re working on wood, metal, or plastic, the Milwaukee Thunderbolt 21/64 in. X 4-5/8 in. L Drill Bit 3-Flat Shank 1 pc guarantees precise drilling results every time. Its innovative design not only enhances cutting performance but also extends the life of the bit, making it an essential addition to your tool collection.

Don't settle for less when it comes to your drilling needs. Upgrade to the Milwaukee Thunderbolt today and experience the difference!

The Details Specifications

Brand Milwaukee
SKU 2350452
UPC 045242166985
Unit 0
Case Pack Quantity 3 per case
Retail Unit Quantity 1
Unit of Measure 0 0
Dimensions (L × W × H) 2 × 7 × 0
Weight 0 lbs
Cubic Feet 0.0034 ft³
Country of Origin THAILAND
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab

Ask our counter. Or theirs.

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What we offer
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Ships Nationwide From our distribution network
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$0.68 of every dollar spent at a local independent business stays in the community. At a national chain, it's about fifteen cents. Civic Economics, multi-city retail studies
Their Counter
Try local first · we'll wait

The stores we send you to are local and independently run — often for generations, the kind of place where someone behind the counter knows the regulars. We don't own them. We just think they deserve the foot traffic. They can put most of what we sell on their next truck. Ask there before you check out here.

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About our directory. National Hardware Group is an independent retailer and directory. The local stores we list and link to are separately owned and operated — we have no ownership stake in any of them, and most pay us nothing to be included. That includes plenty of stores flying a co-op banner that people don't realize are locally owned and run, not operated by a corporation. Store owners can choose to upgrade their listing for an enhanced presence or pickup features, but the base directory is free, and inclusion is never a paid endorsement.

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