# Milwaukee M18 ONEFHIWF12 FUEL ONE-KEY 1/2″ High Torque Impact Wrench

> 1,356 Nm 1/2″ impact wrench with 1,898 Nm nut-busting

- **Brand:** [Milwaukee](https://tools-universe.superfast.shop/en/brands/milwaukee.md)
- **Battery platform:** [Milwaukee M18](https://tools-universe.superfast.shop/en/battery-platforms/milwaukee-m18.md)
- **Category:** [Drilling & driving](https://tools-universe.superfast.shop/en/drilling-and-driving.md) › Impact wrench
- **Item no.:** 4933459726
- **ETIM class:** Impact screwdriver (battery)
- **Price from:** €371.07 excl. VAT (€449.00 incl. VAT)

## Summary

The M18 ONEFHIWF12 is a 1/2″ friction-ring impact wrench with 1,356 Nm fastening torque and 1,898 Nm nut-busting torque. ONE-KEY lets fleet managers track it and set custom torque profiles from a phone.

## Why this one

- **1,898 Nm nut-busting**: Mode 4 frees seized nuts, then slows to keep control.
- **ONE-KEY control**: Tracking, remote lock-out and custom torque presets via the app.
- **Friction ring anvil**: 1/2″ square drive for fast socket changes.
- **Blow-counting sensor**: Helps repeat the chosen torque setting bolt after bolt.

## The story

### For heavy bolting

Steel erectors, plant fitters and groundworks crews dealing with M20 to M33 bolts need a wrench that can both tighten to a repeatable value and free rusted nuts. This tool delivers 1,356 Nm fastening torque and 1,898 Nm in bolt-removal mode from a body 213 mm long.

### Repeatable settings

Four DRIVE CONTROL modes set speed and torque, and mode 4 starts at full power to break a nut loose before dropping to 750 rpm so it does not spin off the thread. A blow-counting sensor helps keep repeated tightening consistent, and the friction ring allows quick socket changes.

### Connected fleet tool

ONE-KEY adds location tracking, inventory records and remote lock-out through the free app, plus custom torque presets. It runs on all M18 packs; HIGH OUTPUT batteries suit sustained bolting, and the tool is offered bare, bare in an HD Box or as a 5.0 Ah kit.

## Specifications

### Drilling & driving

| Specification | Value | ETIM |
|---|---|---|
| Torque, hard joint | 1,356 Nm | EF002842 |
| Breakaway torque | 1,898 Nm |  |
| No-load speed, gear 1 | 1,750 1/min | EF011125 |
| Impact rate | 2,100 1/min | EF004984 |
| Tool holder | ½″ square drive | EF002843 |
| Hammer mode | No |  |
| Kickback control | No |  |
| Interchangeable heads | No |  |

### Power

| Specification | Value | ETIM |
|---|---|---|
| Power source | Cordless (battery) | EF000145 |
| Voltage | 18 V | EF000002 |
| Motor | Brushless |  |
| Connectivity | Milwaukee ONE-KEY |  |

### Physical

| Specification | Value | ETIM |
|---|---|---|
| Length | 213 mm | EF001438 |
| Vibration | 16.7 m/s² | EF017820 |
| Vibration uncertainty | 1.5 m/s² | EF017821 |
| Sound pressure | 94.9 dB(A) | EF017718 |
| Sound power | 105.9 dB(A) | EF017719 |
| LED work light | No |  |
| Belt hook | No |  |

**Technology:** [FUEL](https://tools-universe.superfast.shop/en/technology/fuel.md), [ONE-KEY](https://tools-universe.superfast.shop/en/technology/one-key.md)

## Choose a version

### Bare tool, HD Box

- **Item no.:** 4933459726
- **Stock:** In stock
- **Price:** €371.07 excl. VAT (€449.00 incl. VAT)

### 2 × 5.0 Ah, charger, HD Box

- **Item no.:** 4933459727
- **Stock:** In stock
- **Price:** €437.19 excl. VAT (€529.00 incl. VAT)
- **In the box:**
  - 2 × M18 B5 5.0 Ah battery
  - 1 × Charger
  - 1 × HD Box

### Bare tool

- **Item no.:** 4933499163
- **Stock:** In stock
- **Price:** €371.07 excl. VAT (€449.00 incl. VAT)

## Prices

Net prices exclude VAT; incl. VAT uses the market rate.

| Version | Item no. | EUR Net (excl. VAT) | EUR Incl. VAT 21 % | NOK Net (excl. VAT) | NOK Incl. VAT 25 % | SEK Net (excl. VAT) | SEK Incl. VAT 25 % |
|---|---|---|---|---|---|---|---|
| Bare tool, HD Box | 4933459726 | €371.07 | €449.00 | NOK 4,399.20 | NOK 5,499.00 | SEK 4,159.20 | SEK 5,199.00 |
| 2 × 5.0 Ah, charger, HD Box | 4933459727 | €437.19 | €529.00 | NOK 5,119.20 | NOK 6,399.00 | SEK 4,879.20 | SEK 6,099.00 |
| Bare tool | 4933499163 | €371.07 | €449.00 | NOK 4,399.20 | NOK 5,499.00 | SEK 4,159.20 | SEK 5,199.00 |

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Web page: https://tools-universe.superfast.shop/en/drilling-and-driving/milwaukee-m18-onefhiwf12-fuel-one-key-12-high-torque-impact-wrench
Markdown version of this page, for language models. Prices are net (excl. VAT) unless marked incl. VAT.