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
FAQ Shipping & Returns Order Lookup Contact Account
Milwaukee M18 1/2 in. Cordless Brushless High Torque Impact Wrench Tool Only
Milwaukee M18 1/2 in. Cordless Brushless High Torque Impact Wrench Tool Only
Milwaukee M18 1/2 in. Cordless Brushless High Torque Impact Wrench Tool Only
Milwaukee M18 1/2 in. Cordless Brushless High Torque Impact Wrench Tool Only
Milwaukee M18 1/2 in. Cordless Brushless High Torque Impact Wrench Tool Only
Milwaukee M18 1/2 in. Cordless Brushless High Torque Impact Wrench Tool Only
Milwaukee M18 1/2 in. Cordless Brushless High Torque Impact Wrench Tool Only
Milwaukee M18 1/2 in. Cordless Brushless High Torque Impact Wrench Tool Only
Milwaukee M18 1/2 in. Cordless Brushless High Torque Impact Wrench Tool Only

Milwaukee M18 1/2 in. Cordless Brushless High Torque Impact Wrench Tool Only

800 ft-lbs of brushless torque in a compact 5.9 lb body built for stubborn bolts and all-day shop work.
Milwaukee MPN 2666-20
Sold Locally Only

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

Typical Store Price i
Typical store price: low $236.99, average $279.00
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

The M18 2666-20 puts 800 ft-lbs of torque behind a 1/2" friction ring drive, built for the jobs where a standard impact wrench runs out of muscle - breaking loose rusted suspension bolts, lug nuts that have been overtorqued at the shop, or lag screws that have been sitting for years. The brushless motor delivers that torque at 2000 impacts per minute while keeping the tool efficient enough to run all shift on M18 REDLITHIUM battery packs. At 8.75" long and 5.9 lbs bare, it's compact enough to work in wheel wells and tight engine bays without giving up the power a mechanic, fleet tech, or heavy equipment operator needs. Variable speed control lets you dial back for precision work like seating bolts before running them home. A built-in LED lights up dark corners of an engine compartment or undercarriage. This is a tool-only listing - Milwaukee sells it bare for shops already running M18 batteries and chargers. Backed by Milwaukee's 5-year warranty.

  • Torque: 800 ft-lbs
  • Drive size: 1/2" friction ring
  • 2000 impacts per minute, brushless motor
  • Variable speed trigger with built-in LED
  • Tool weight: 5.9 lbs, length: 8.75"
  • Tool only - runs on M18 REDLITHIUM batteries, 5-year warranty

The Details Specifications

Brand Milwaukee
UPC 045242745579
Case Pack Quantity 4 per case
Retail Unit Quantity 1
Dimensions (L × W × H) 4 × 9 × 10
Weight 7 lbs
Country of Origin VIETNAM
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.

Ask our counter. Or theirs.

Most hardware stores can do more than you think. If we can't help you, the folks down the street probably can — just ask at the counter.

What we offer
Shop Your Local Store Ship to your hometown store
Pro & Gov Accounts Net terms · tax-exempt
Ships Nationwide Direct to your door
Independent Network Real hardware stores
$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
100% Authorized & Genuine — Our Guarantee →
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.

Find a local store →
Mon–Fri 6–5 PST
Independent hardware retailer? Join the network →
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 familiar 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.

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