The Milwaukee 12 volt battery would only be compatible with other Milwaukee M12 tools.
Milwaukee M12 FUEL Surge Cordless 1/4in. Hex Hydraulic Driver Kit, 2 Batteries, Model# 2551-22

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Offer: FREE Milwaukee M12 Ratchet with Purchase of a Qualifying M12 Tool See Details
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- Fluid-Drive hydraulic powertrain reduces metal on metal contact within the tool, delivering quieter operation, smoother performance and increased durability over a standard impact
- Up to 2X quieter operation makes this tool ideal for occupied spaces
- 4-Mode Drive control provides greater control over output speed and power for greater versatility
- Longer sustained torque delivers similar drive times in application as most 12V impact drivers
- Compact head length and compact battery footprint gives more access than competitive impact drivers
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Description
Key Specs
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Product Summary
What's Included
- (1) M12 FUEL Surge Cordless 1/4in. Hex Hydraulic Driver (2) M12 RedLithium Compact 2.0 Batteries (1) Charger (1) Belt Clip (1) Contractor bag

Over 80 Tools, One Battery
- More than 80 unique solutions make the M12™ family the largest sub-compact cordless system on the market.
- M12™ defines cordless tool innovation, transforming inefficient manual tools into advanced workhorses powered by MILWAUKEE's ® REDLITHIUM™ battery technology.
The M12™ System – Built For The Jobsite
- The MILWAUKEE ® M12™ cordless system delivers industry leading durability and power in a size that outperforms the competition in the tightest places.
- REDLITHIUM™ batteries last longer, think faster, and work harder than all other professional LITHIUM-ION batteries. Built to withstand the harshest environments, REDLITHIUM™ batteries deliver more work over the course of your day and the life of the battery.
- Combining advanced hardware and software, REDLINK™ Intelligence enables advanced communication between your batteries and tools, allowing for unmatched levels of performance, protection, and productivity.
Shop With Confidence
- MILWAUKEE ® provides the best in heavy-duty electric power tools and accessories.
- Your purchase is protected with a 5-year limited warranty on cordless tools, a 2-year limited warranty on compact batteries, and a 3-year limited warranty on XC batteries.
- Shop in complete confidence, knowing that Northern Tool + Equipment protects your investment and is ready to provide you with the assistance and helpful resources you need.
Features + Benefits
- Fluid-Drive hydraulic powertrain reduces metal on metal contact within the tool, delivering quieter operation, smoother performance and increased durability over a standard impact
- Up to 2X quieter operation makes this tool ideal for occupied spaces
- 4-Mode Drive control provides greater control over output speed and power for greater versatility
- Longer sustained torque delivers similar drive times in application as most 12V impact drivers
- Compact head length and compact battery footprint gives more access than competitive impact drivers
- Powerstate™ brushless motor delivers maximum power and long motor life
- Redlink Plus™ Intelligence prevents damage to the tool and battery due to overloading or overheating
- RedLithium™ batteries deliver more work per charge and more work over the life of the battery
Key Specs
| Attribute | Specification |
|---|---|
item# | 85161 |
Brand | Milwaukee |
Manufacturer's Warranty | 5 year limited warranty |
Ship Weight | 5.27 LB |
Drive Size | 1/4 in |
Max. Torque | 450 ft-lbs. |
Volts | 12 |
Battery Type | Lithium-ion |
Battery Included | Yes |
Max. Blows Per Minute | 3,400 |
Cordless | Yes |
| Attribute | Specification |
|---|---|
Motor Type | Brushless |
Max. RPM | 3,000 |
Battery Capacity | 2 A·h |
Batteries (qty.) | 2 |
Keyless Chuck | Yes |
Charger Included | Yes |
Storage Type | Bag |
Product Category | Power Tools Regular |
Product Weight | 2.4000 lb |
Dimensions L x W x H (in.) | 5.2 x 2.2 x 7.5 in |
Reviews
Questions & Answers
Questions
-
· 6 years ago
Battery compatibility with other tools
I'm intersted in the M12, 1/4" hex driver, but was wondering if the 12 volt battery would limit my choices of other tools that could share that battery.
1 answer-
ProductExpert30· 6 years ago
Helpful?
-
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Warranty
Manufacturer's Warranty
5 year limited warranty
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Specifications
1/4 in
1/4 in
1/4 in
1/4 in
450 ft-lbs.
50 ft-lbs.
167 ft-lbs.
125 ft-lbs.
12
12
18
12
Lithium-ion
Lithium-ion
Lithium-ion
Lithium-ion
Yes
No
Yes
No
3,400
3,300
4,400
4,000
Yes
Yes
Yes
Yes
Brushless
Brushed
Brushless
Brushless
3,000
2,450
3,900
3,600
2 A·h
-
5 A·h
-
2
-
2
-
Yes
Yes
-
-
Yes
No
Yes
No
Bag
None
Plastic Case
None
Power Tools Regular
Power Tools Regular
Power Tools Regular
Power Tools Regular
2.4000 lb
lb
2.5500 lb
1.9600 lb
5.2 x 2.2 x 7.5 in
12.0 x 4.06 x 2.75 in
3.9 x 5.4 x 9.5 in
7.83 x 5.59 x 3.66 in
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