M18 FUEL 1" High Torque Impact Wrench w/ ONE-KEY
Battery answer
Every reviewed M18 pack powers SKU 2867-20 at full rated performance, with no battery-specific condition.
- Battery platform
- Milwaukee M18
- Packs required
- 1 pack
- 9 work without conditions.
Battery requirement sources (1)
- Milwaukee Tool — manufacturer page, retrieved 2026-07-31
Compare the reviewed packs See tool specifications and sources
Milwaukee · Impact Wrenches · SKU 2867-20 · Milwaukee source
Compare the reviewed M18 packs
| Battery | Capacity | Energy | Power level | Answer |
|---|---|---|---|---|
| 48-11-1813 | 12 Ah | 216 Wh | PWR5 | Works |
| 48-11-1820 | 2 Ah | 36 Wh | not published | Works |
| 48-11-1828 | 3 Ah | 54 Wh | not published | Works |
| 48-11-1840 | 4 Ah | 72 Wh | not published | Works |
| 48-11-1850 | 5 Ah | 90 Wh | PWR2 | Works |
| 48-11-1850R | 5 Ah | 90 Wh | not published | Works |
| 48-11-1861 | 6 Ah | 108 Wh | PWR4 | Works |
| 48-11-1865 | 6 Ah | 108 Wh | PWR3 | Works |
| 48-11-1881 | 8 Ah | 144 Wh | PWR4 | Works |
Energy is capacity × nominal voltage — our arithmetic on Milwaukee’s figures, not a number they publish. It is the only honest way to compare packs across capacities. Power level is Milwaukee’s own PWR tier where they publish one.
Compatibility sources (1)
- Milwaukee Tool — manufacturer support, retrieved 2026-07-30“All M18 Batteries are compatible with M18 tools & chargers.”
Kit configurations
Ways Milwaukee sells this exact tool in a box. Contents are decomposed to manufacturer SKUs; non-SKU’d accessories — side handles, belt clips, cases — are omitted because they carry no compatibility meaning.
M18 FUEL 1" High Torque Impact Wrench w/ ONE-KEY Kit (2867-22)
| Qty | Component | SKU |
|---|---|---|
| 1 | M18 FUEL 1" High Torque Impact Wrench w/ ONE-KEY | 2867-20 |
| 2 | M18 REDLITHIUM FORGE XC8.0 Battery Pack | 48-11-1881 |
| 1 | M18 & M12 Rapid Charger | 48-59-1808 |
Battery capacity in the box: 16.0 Ah across 2 pack(s). This is the directly comparable capacity when weighing the kit against the bare tool plus packs.
Contents provenance: manufacturer claim; review completed 2026-07-31 by jon.
Contents sources for 2867-22 (1)
- Milwaukee Tool — manufacturer page, retrieved 2026-07-31
Tool specifications and manufacturer claims
Basic tool facts
| Brushless | Yes |
|---|---|
| Weight, bare tool | 10.64 lb |
Specification sources (1)
- Milwaukee Tool — manufacturer page, retrieved 2026-07-31
Full specifications
As published by Milwaukee for SKU 2867-20, read 2026-07-31. Values are quoted in their units, not reformatted.
| Anvil Size | 1 in |
|---|---|
| Anvil Type | Friction Ring w/ Thru-Hole |
| Height | 9.69 in |
| Length | 10.9 in |
| Width | 3.44 in |
| Branding | Badge: FUEL · Tool: FUEL |
| Brushless Motor | Yes |
| Chuck Size | Not Applicable in |
| Chuck Type | Not Applicable |
| Colors | Black · Red |
| DRIVE CONTROL | 4-Mode (Customizable) |
| FUEL | Yes |
| IPM Range | 0 - 2,450 IPM |
| Maximum Torque | 1800 ft-lbs |
| Motor Type | POWERSTATE Brushless |
| Number of Batteries Included | 0 |
| Number of Batteries Required | 1 |
| Number of Pieces Included | 1 |
| ONE-KEY Enabled | Yes |
| RPM Range | 0 - 1,650 RPM |
| Variable Speed | Yes |
| Warranty | 3 Year Limited Warranty |
| Weight w/Batteries | 13 lb |
What Milwaukee says about it
- POWERSTATE Brushless Motor delivers up to 1,800 ft-lbs. Nut-Busting Torque, Making it the World's Most Powerful Cordless Impact Wrench
- Up to 7 lbs. Lighter Weight allowing for less user fatigue
- Eliminates Compressors and Generators, providing greater portability and lower cost of ownership
- 4-Mode DRIVE CONTROL provides greater control over output speed and power.
- Integrated lanyard loop allows for safer use and easier storage
- REDLINK PLUS Intelligence ensures maximum performance and protects from overloads, heating and over-discharge
- Handle rotates 270 degrees and easily adjusts without a tool
- LED light to illuminate work areas
- Premium rubber overmold withstands corrosive materials and provides increased comfort when in use
- Compatible with all M18 batteries
- ONE-KEY Compatible: Ability to Customize, Track and Manage tools for increased productivity and investment protection. Includes the ability to set a repeatable torque output for maximum control.
Manufacturer marketing copy, reproduced so you can judge it. We have not tested these claims.