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 Four Flat 1/4 in. drive SAE Socket Adapter
Milwaukee Four Flat 1/4 in. drive SAE Socket Adapter
Milwaukee Four Flat 1/4 in. drive SAE Socket Adapter
Milwaukee Four Flat 1/4 in. drive SAE Socket Adapter
Milwaukee Four Flat 1/4 in. drive SAE Socket Adapter

Milwaukee Four Flat 1/4 in. drive SAE Socket Adapter

Impact-rated steel construction means this drive adapter won't strip or shear when your impact wrench puts it to work.
Milwaukee MPN 42-04-9110
Sold Locally Only

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

Typical Store Price i
Typical store price: low $9.99, average $11.99
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

This Milwaukee socket adapter lets you step up from a 1/4 in. drive to a 3/8 in. drive without buying a whole new socket set. It's built from steel with a chrome-plated finish, and unlike standard adapters, this one is impact rated - so it holds up under an impact wrench instead of shearing or rounding off.

Handy for filling gaps in your socket collection or adapting a ratchet you already own to sockets sized for a different drive.

  • Input drive size: 1/4 in.
  • Output drive size: 3/8 in.
  • Material: steel with chrome-plated finish
  • Impact rated for use with impact wrenches
  • SAE, sold individually

The Details Specifications

Brand Milwaukee
UPC 045242617296
Case Pack Quantity 400 per case
Retail Unit Quantity 1
Dimensions (L × W × H) 1 × 2 × 3
Weight 0 lbs
Country of Origin CHINA
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