---
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: "€ 16.02"
currency: EUR
in_stock: true
reviews_count: 13
category: "Us Pro"
url: https://www.desertcart.fi/products/476304114-tools-4-piece-impact-adaptor-set-1-4-3-8
store_origin: FI
region: Finland
---

# Black phosphate corrosion resistance 4 precision adaptors Chrome-vanadium steel strength Tools 4 Piece Impact Adaptor Set 1/4" 3/8" 1/2" Step up/Down Reducer 3504

**Brand:** us pro
**Price:** € 16.02
**Availability:** ✅ In Stock

## Summary

> 🛠️ Upgrade your impact game with pro-grade adaptors that never quit!

## 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?** € 16.02 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/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 Last:** Crafted from premium chrome-vanadium steel to withstand heavy-duty impact use without wear.
- • **Trusted by Pros:** Highly rated with 4.6 stars from 600+ users who demand durability and precision on the job.
- • **Seamless Size Conversion:** Effortlessly switch between 1/4", 3/8", and 1/2" drive sizes for ultimate versatility.
- • **Compact Toolbox Essential:** Lightweight and perfectly sized to upgrade or replace your existing impact adaptor set.
- • **Corrosion-Resistant Finish:** Black phosphate coating protects against abrasion, oxidation, and corrosion for long-term reliability.

## Overview

The US PRO Tools 4 Piece Impact Adaptor Set (model 3504) includes four high-quality adaptors designed to convert between 1/4", 3/8", and 1/2" impact drive sizes. Made from durable chrome-vanadium steel with a black phosphate finish, these adaptors resist corrosion and abrasion, ensuring long-lasting performance. Lightweight and compact, this set is a must-have for any professional or serious DIYer looking to expand their toolkit’s versatility.

## 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: good product - good quality, and work well with the torque driver

## 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 |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 254 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 49 in Industrial Power Tool Accessories |
| Compatible fastener range | 0.25 inches |
| Customer Reviews | 4.6 4.6 out of 5 stars (631) |
| Date First Available | 23 Mar. 2021 |
| Finish | Black Phosphate Finish |
| Item Package Quantity | 1 |
| Item Weight | 150 g |
| Item model number | 3504 |
| Manufacturer | US PRO |
| Material | Chrome Vanadium Steel |
| Number of Pieces | 4 |
| Package Dimensions | 11.2 x 8 x 2.6 cm; 150 g |
| Part Number | 3504 |
| Size | Variety Pack |

## 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

### ⭐⭐⭐⭐⭐ good product
*by C***N on 14 January 2026*

good quality, and work well with the torque driver

### ⭐⭐⭐⭐⭐ Good quality adapters
*by B***Y on 25 November 2025*

Excellent addition to my toolbox, and fit my sockets without gaps

## 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

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**Shop now:** [https://www.desertcart.fi/products/476304114-tools-4-piece-impact-adaptor-set-1-4-3-8](https://www.desertcart.fi/products/476304114-tools-4-piece-impact-adaptor-set-1-4-3-8)

---

*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-02-21*