--- product_id: 476304114 title: "Tools 4 Piece Impact Adaptor Set 1/4\" 3/8\" 1/2\" Step up/Down Reducer 3504" brand: "us pro" price: "55 zł" currency: PLN in_stock: true reviews_count: 8 category: "Us Pro" url: https://www.desertcart.pl/products/476304114-tools-4-piece-impact-adaptor-set-1-4-3-8 store_origin: PL region: Poland --- # Black phosphate finish resists corrosion 4 precision adaptors for versatile drive sizes Chromium-vanadium steel for ultimate durability Tools 4 Piece Impact Adaptor Set 1/4" 3/8" 1/2" Step up/Down Reducer 3504 **Brand:** us pro **Price:** 55 zł **Availability:** ✅ In Stock ## Summary > 🔧 Upgrade your toolkit game with impact-ready precision! ## Quick Answers - **What is this?** Tools 4 Piece Impact Adaptor Set 1/4" 3/8" 1/2" Step up/Down Reducer 3504 by us pro - **How much does it cost?** 55 zł with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/476304114-tools-4-piece-impact-adaptor-set-1-4-3-8) ## Best For - us pro enthusiasts ## Why This Product - Trusted us pro brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Endure:** Crafted from premium chromium-vanadium steel, engineered to withstand heavy-duty use and resist wear. - • **Trusted by Pros:** Top-rated with 4.6 stars from 729 reviews, a must-have upgrade for serious tradespeople and DIY enthusiasts. - • **Compact & Lightweight:** At just 150 grams and 1.27 cm length, these adaptors fit perfectly in any professional toolbox without bulk. - • **Corrosion-Resistant Finish:** Black phosphate coating ensures long-lasting protection against abrasion and oxidation. - • **Seamless Drive Size Conversion:** Effortlessly switch between 1/4", 3/8", and 1/2" impact drives for maximum tool compatibility. ## Overview The US PRO Tools 4 Piece Impact Adaptor Set (Model 3504) offers four high-quality adaptors made from durable chromium-vanadium steel with a corrosion-resistant black phosphate finish. Designed for seamless step-up and step-down conversions between 1/4", 3/8", and 1/2" impact drives, this compact set is lightweight and highly rated by professionals, making it an essential addition to any workshop or toolbox. ## Description Set of 4 adaptors for converting impact drive sizes.1/2'' F x 3/8'' M3/8'' F x 1/2'' M3/8'' F x 1/4'' M1/4'' F x 3/8'' MMade from chromium-vanadium steel for strength and durability and helps resist abrasion, oxidation, and corrosionBlack phosphate finishThis high quality Adaptor Set comes to you brand new with retail packaging/tagThis is a perfect addition / replacement to any toolbox or workshop Review: High Quality - Fantastic Price - Heavy duty, Great product, works perfectly if used correctly! Great Price Review: Great value - Great socket adapters, well made and fit together snugly ## Features - 1/2" F x 3/8" M - 3/8" F x 1/2" M - 3/8" F x 1/4" M - 1/4" F x 3/8" M ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0BFX3WT2T | | Best Sellers Rank | 191 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 35 in Industrial Power Tool Accessories | | Bit Compatibilities | 1/4 inch | | Brand | US PRO | | Country of Origin | United Kingdom | | Customer Reviews | 4.6 out of 5 stars 729 Reviews | | Drive Bit Shank Style | Hex | | Drive System | External Hex | | Drive system | External Hex | | Finish | Black Phosphate Finish | | Finish type | Black Phosphate Finish | | Item Length | 1.27 Centimetres | | Item Type Name | US PRO Tools 4 Piece Impact Adaptor Set 1/4" 3/8" 1/2" Step up/Down Reducer | | Item Weight | 150 Grams | | Item length | 1.27 Centimetres | | Manufacturer | US PRO | | Material | Chrome Vanadium Steel | | Model Number | 3504 | | Number of Pieces | 4 | | Number of pieces | 4 | | Unit Count | 1.0 count | ## Product Details - **Brand:** US PRO - **Finish type:** Black Phosphate Finish - **Item length:** 1.27 Centimetres - **Material:** Chrome Vanadium Steel - **Number of pieces:** 4 ## Images ![Tools 4 Piece Impact Adaptor Set 1/4" 3/8" 1/2" Step up/Down Reducer 3504 - Image 1](https://m.media-amazon.com/images/I/41d61oqe29L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ High Quality - Fantastic Price *by K***D on 21 January 2026* Heavy duty, Great product, works perfectly if used correctly! Great Price ### ⭐⭐⭐⭐⭐ Great value *by B***N on 12 February 2026* Great socket adapters, well made and fit together snugly ### ⭐⭐⭐⭐⭐ Good price and well made *by S***L on 10 March 2026* Seems well made have used them a couple of times with no issues. ## Frequently Bought Together - US PRO Tools 4 Piece Impact Adaptor Set 1/4" 3/8" 1/2" Step up/Down Reducer 3504 - Sealey Ak730 Breaker Bar 600Mm 1/2Sq Drive --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pl/products/476304114-tools-4-piece-impact-adaptor-set-1-4-3-8](https://www.desertcart.pl/products/476304114-tools-4-piece-impact-adaptor-set-1-4-3-8) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-04-23*