--- product_id: 563089749 title: "US PRO Tools 4 Piece Impact Adaptor Set 1/4\" 3/8\" 1/2\" Step up/Down Reducer 3504" brand: "us pro" price: "253 kr" currency: NOK in_stock: true category: "Us Pro" url: https://www.desertcart.no/products/563089749-us-pro-tools-4-piece-impact-adaptor-set-1-4 store_origin: NO region: Norway --- # Black phosphate finish resists corrosion 4 precision adaptors for versatile drive sizes Chromium-vanadium steel for ultimate durability US PRO Tools 4 Piece Impact Adaptor Set 1/4" 3/8" 1/2" Step up/Down Reducer 3504 **Brand:** us pro **Price:** 253 kr **Availability:** ✅ In Stock ## Summary > ⚙️ Upgrade your toolkit game with precision and power! ## Quick Answers - **What is this?** US PRO 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?** 253 kr with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.no](https://www.desertcart.no/products/563089749-us-pro-tools-4-piece-impact-adaptor-set-1-4) ## 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 Last:** Crafted from premium chromium-vanadium steel to withstand abrasion, oxidation, and corrosion for years of reliable use. - • **Trusted by Pros:** Highly rated with 4.6 stars from nearly 900 users—join the community of skilled craftsmen who rely on US PRO. - • **Compact & Ready to Go:** Lightweight 4-piece set fits perfectly in any professional toolbox or workshop setup. - • **Sleek & Protective Finish:** Black phosphate coating not only looks sharp but also guards against rust and wear. - • **Seamless Drive Size Conversion:** Effortlessly switch between 1/4", 3/8", and 1/2" impact drives without missing a beat. ## Overview The US PRO Tools 4 Piece Impact Adaptor Set (model 3504) offers versatile step-up and step-down drive size conversions between 1/4", 3/8", and 1/2" impact tools. Made from durable chromium-vanadium steel with a corrosion-resistant black phosphate finish, this compact set is designed for professional-grade performance and longevity. Perfect for any serious tradesperson looking to enhance their impact wrench capabilities. ## 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 ## 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 | | ASIN | B0BFX3WT2T | | Best Sellers Rank | #44,965 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #168 in Socket Wrenches | | Bit Compatibilities | 1/4 inch | | Bit Set Composition | Bit Set | | Brand Name | US PRO | | Customer Reviews | 4.6 4.6 out of 5 stars (894) | | Customer reviews | 4.6 4.6 out of 5 stars (894) | | Date First Available | 1 September 2023 | | Drive Bit Shank Style | Hex | | Drive End Style | Hex | | Drive System | External Hex | | Finish Types | Black Phosphate Finish | | Item Length | 1.27 Centimeters | | Item Type Name | US PRO Tools 4 Piece Impact Adaptor Set 1/4" 3/8" 1/2" Step up/Down Reducer | | Item model number | 3504 | | Manufacturer | US PRO | | Manufacturer | US PRO | | Manufacturer Part Number | 3504 | | Material Type | Chrome Vanadium Steel | | Model Number | 3504 | | Number of Items | 4 | | Number of Packs | 1 | | Number of Pieces | 4 | | Package Dimensions | 11.5 x 8.3 x 2.7 cm; 140 g | | Set Name | US PRO Tools 4 Piece Impact Adaptor Set | | Unit Count | 1 Count | ## Product Details - **Brand:** US PRO - **Finish type:** Black Phosphate Finish - **Item length:** 1.27 Centimeters - **Material:** Chrome Vanadium Steel - **Number of pieces:** 4 ## Images ![US PRO 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) ## 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.no/products/563089749-us-pro-tools-4-piece-impact-adaptor-set-1-4](https://www.desertcart.no/products/563089749-us-pro-tools-4-piece-impact-adaptor-set-1-4) --- *Product available on Desertcart Norway* *Store origin: NO* *Last updated: 2026-09-16*