M18 FUEL w/ ONE-KEY High Torque Impact Wrench 1/2" Pin Detent Bare Tool
Battery answer
Every reviewed M18 pack powers SKU 2862-20 at full rated performance, with no battery-specific condition.
- Battery platform
- Milwaukee M18
- Packs required
- Not published by Milwaukee
- 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 2862-20 · 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.”
Tool specifications and manufacturer claims
Basic tool facts
| Weight, bare tool | Not published for this exact SKU |
|---|
Specification sources (1)
- Milwaukee Tool — manufacturer page, retrieved 2026-07-31
Full specifications
As published by Milwaukee for SKU 2862-20, read 2026-07-31. Values are quoted in their units, not reformatted.
| Anvil Type | Detent Pin |
|---|---|
| Anvil Size | 1/2" |
| Wrench Type | High Torque |
| Fastening Torque | 750 ft-lbs |
| IPM | 0 - 2,400 IPM |
| Nut Busting Torque | 1100 ft-lbs |
| Tool Warranty | 5 Year Limited Warranty |
| Power Source | Cordless |
| Motor Type | POWERSTATE Brushless |
| Length | 8.1 in |
| Weight | 5.5 lbs |
| Height | 8.79 in |
| Width | 3.15 in |
| OneKey Compatible | Yes |
| Fuel | Yes |
| DRIVE CONTROL | 4-Mode (Customizable) |
| Maximum RPM | 0 - 1,800 RPM |
What Milwaukee says about it
- Most compact cordless High Torque Impact Wrench in its class at 8.1" in length
- REDLINK PLUS intelligence prevents damage to the tool and battery due to overloading or overheating
- Features a pin detent design for maximum socket retention
- Reduced user fatigue at only 7.1lbs with battery
- REDLITHIUM batteries deliver more work per charge and more work over the life of the battery
- Premium rubber overmold withstands corrosive materials and provides increased comfort when in use
- LED light to illuminate the work area
- ONE-KEY Compatible: Customize, Track and Manage tool’s performance and location
- POWERSTATE brushless motor delivers up to 750ft-lbs of fastening torque and 1100ft-lbs of nut-busting torque
- M18 FUEL with ONE-KEY technology provides the most repeatable Impact Wrench in the industry
- Easily toggle up to four custom performance profiles that can be saved to the memory of the tool
Manufacturer marketing copy, reproduced so you can judge it. We have not tested these claims.