---
product_id: 109583542
title: "FIRSTINFO 3.4:1 Compact Torque Multiplier 600 Nm, 1/2\" Drive Male to Female Adapter Max 443 ft-lbs, Labor Saving Tool for Lug Nut, F3220DD"
brand: "firstinfo tools fit your needs"
price: "¥27260"
currency: JPY
in_stock: true
reviews_count: 13
category: "Firstinfo Tools Fit Your Needs"
url: https://www.desertcart.jp/products/109583542-firstinfo-3-4-1-compact-torque-multiplier-600-nm-1
store_origin: JP
region: Japan
---

# Max output torque 600 Nm (443 ft-lbs) 3.4:1 torque multiplier ratio Lightweight 960g CR-V alloy steel build FIRSTINFO 3.4:1 Compact Torque Multiplier 600 Nm, 1/2" Drive Male to Female Adapter Max 443 ft-lbs, Labor Saving Tool for Lug Nut, F3220DD

**Brand:** firstinfo tools fit your needs
**Price:** ¥27260
**Availability:** ✅ In Stock

## Summary

> ⚡ Unlock Maximum Torque with Minimal Effort!

## Quick Answers

- **What is this?** FIRSTINFO 3.4:1 Compact Torque Multiplier 600 Nm, 1/2" Drive Male to Female Adapter Max 443 ft-lbs, Labor Saving Tool for Lug Nut, F3220DD by firstinfo tools fit your needs
- **How much does it cost?** ¥27260 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/109583542-firstinfo-3-4-1-compact-torque-multiplier-600-nm-1)

## Best For

- firstinfo tools fit your needs enthusiasts

## Why This Product

- Trusted firstinfo tools fit your needs brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Durable Alloy Steel:** Crafted from CR-V steel for long-lasting stability and professional-grade reliability.
- • **Compact & Lightweight:** Only 15.5 cm and under 1 kg for ultimate portability and ease of use.
- • **Powerful Torque Boost:** Multiply your manual input torque by 3.4x for effortless lug nut loosening.
- • **Precision Engineering:** ±5% accuracy ensures reliable, consistent performance every time.
- • **Ergonomic & Protective:** Rubber-covered reaction bar safeguards rims while adapting to tight spaces.

## Overview

The FIRSTINFO F3220DD is a compact, hand-powered torque multiplier designed to deliver up to 600 Nm of torque with a 3.4:1 ratio. Built from durable CR-V alloy steel and featuring a protective rubber reaction bar, it’s optimized for quick, safe tire changes on cars, vans, and trucks. Lightweight and precise, it’s the essential labor-saving tool for automotive professionals and enthusiasts alike.

## Description

FIRSTINFO F3220DD 3.4:1 Compact Torque Multiplier 600 Nm - 1/2 inch Drive (Male) to 1/2 inch Drive (Female) Adaptor Max. 600 Nm/Labor Saving Tool for Lug Nut - desertcart.com

Review: Adapter - Very useful torque adapter
Review: Excellent for the price - Important first note, I only used this to torque a nut to 500 ft/lbs so I didn't push it to its claimed limit. This worked perfectly for me and was incredibly less expensive than a torque wrench with the same capability would have been. The multiplier has a range of accuracy of something like 4% which has to be figured along with the accuracy of the torque wrench you're using as well. This could result in a relatively large variance in actual torque applied but that's the payoff for saving a couple hundred dollars (minimum) on a higher capacity torque wrench.

## Features

- 💎*Energy-Saving Tool for Tire Change* -- Input square: 1/2" ; Output square: 1/2". Patented Designed.
- 💎*Maximum Output: 600Nm (443 ft-lbs) / Maximum Input: 176Nm (130 ft-lbs)* -- 3.4:1 torque multiplication, accuracy tolerance: ±5% Please note this product is for manual usage, do not use with impact tools.
- 💎*Widely Use* -- Adapted for easily tire change of car, van, truck in automotive repair industry. The movable reaction handle is suit for different working place.
- 💎*Protection Purpose* -- Supplied with the rubber-cover reaction bar for tire rim protection purpose.
- 💎*Easy for Operation* -- Main body: Small and light weight benefits as socket size is easy and convenient for operation. Constructed with CR-V alloy steel brings better stability and reliability.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07G86VBHM |
| Best Sellers Rank | #193,323 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #355 in Torque Wrenches |
| Brand Name | FIRSTINFO TOOLS FIT YOUR NEEDS |
| Color | Silver |
| Customer Reviews | 4.3 4.3 out of 5 stars (158) |
| Finish Types | Polished |
| Head Style | Hex |
| Item Length | 15.5 Centimeters |
| Item Torque | 443 Foot Pounds |
| Item Weight | 960 Grams |
| Manufacturer | FIRSTINFO TOOLS |
| Manufacturer Warranty Description | 12+10 months after-sales warranty (10 months warranty by register) |
| Material Type | Metal |
| Model Number | F3220DD |
| Operation Mode | Mechanical |
| Package Quantity | 1 |
| UPC | 636946342203 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** FIRSTINFO TOOLS FIT YOUR NEEDS
- **Color:** Silver
- **Item Length:** 15.5 Centimeters
- **Item Weight:** 960 Grams
- **Material:** Metal

## Images

![FIRSTINFO 3.4:1 Compact Torque Multiplier 600 Nm, 1/2" Drive Male to Female Adapter Max 443 ft-lbs, Labor Saving Tool for Lug Nut, F3220DD - Image 1](https://m.media-amazon.com/images/I/41qwEhV-oOL.jpg)
![FIRSTINFO 3.4:1 Compact Torque Multiplier 600 Nm, 1/2" Drive Male to Female Adapter Max 443 ft-lbs, Labor Saving Tool for Lug Nut, F3220DD - Image 2](https://m.media-amazon.com/images/I/71b26i1EDoL.jpg)
![FIRSTINFO 3.4:1 Compact Torque Multiplier 600 Nm, 1/2" Drive Male to Female Adapter Max 443 ft-lbs, Labor Saving Tool for Lug Nut, F3220DD - Image 3](https://m.media-amazon.com/images/I/61fYa6p3ivL.jpg)
![FIRSTINFO 3.4:1 Compact Torque Multiplier 600 Nm, 1/2" Drive Male to Female Adapter Max 443 ft-lbs, Labor Saving Tool for Lug Nut, F3220DD - Image 4](https://m.media-amazon.com/images/I/61--+rhjJPL.jpg)
![FIRSTINFO 3.4:1 Compact Torque Multiplier 600 Nm, 1/2" Drive Male to Female Adapter Max 443 ft-lbs, Labor Saving Tool for Lug Nut, F3220DD - Image 5](https://m.media-amazon.com/images/I/61Pq2-ycKjL.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Adapter
*by L***T on April 7, 2026*

Very useful torque adapter

### ⭐⭐⭐⭐⭐ Excellent for the price
*by J***H on March 19, 2020*

Important first note, I only used this to torque a nut to 500 ft/lbs so I didn't push it to its claimed limit. This worked perfectly for me and was incredibly less expensive than a torque wrench with the same capability would have been. The multiplier has a range of accuracy of something like 4% which has to be figured along with the accuracy of the torque wrench you're using as well. This could result in a relatively large variance in actual torque applied but that's the payoff for saving a couple hundred dollars (minimum) on a higher capacity torque wrench.

### ⭐⭐⭐⭐ Used for torque to yield bolts
*by J***N on January 31, 2026*

Worked well, I wish the stop arm was stronger and maybe some longer lengths, it is sometimes hard to find something for it to work against.

## Frequently Bought Together

- FIRSTINFO F3220DD 3.4:1 Compact Torque Multiplier 600 Nm - 1/2 inch Drive (Male) to 1/2 inch Drive (Female) Adaptor Max. 600 Nm/Labor Saving Tool for Lug Nut
- Stanley Proto J7121 1/2" Square Ext, 7/16" Hex
- proto J7121 Impact Socket Adapter, 7/16In x 1/2In

---

## 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.jp/products/109583542-firstinfo-3-4-1-compact-torque-multiplier-600-nm-1](https://www.desertcart.jp/products/109583542-firstinfo-3-4-1-compact-torque-multiplier-600-nm-1)

---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-05-23*