Milwaukee M12 Palm Nailer 2458-20

By Robert Robillard on Tool Reviews

Milwaukee 2458-20 M12™ Palm Nailer Review:

The folks at Milwaukee recently sent me their Milwaukee  M12™ Palm Nailer 2458-20 Milwaukee M12 Palm Nailer 2458-20to review.

The Milwaukee M12 Palm Nailer 2458-20 provides a cordless solution for professional nailing applications without the hassle of an air compressor or hose. The compact size takes this tool places unreachable by a tradition nail gun, while the powerful impacting mechanism handles the most difficult of tasks. The M12™ Palm Nailer also features an on board fuel gauge, LED work light, and a convenient hand strap to ensure the highest level of safety and productivity for the user.

The M12™ Palm Nailer uses Milwaukees new REDLITHIUM™ batteries.  these batteries are an improvement over the lithium-Ion batteries that we all want.  REDLITHIUM™ batteries  provide up to 40% more run-time, 20% more power and 50% more recharges than other Lithium products. The new batteries will also operate in extreme temperatures as low as 0°F/-18°C and will run 20% cooler with fade free power and no memory effect.

REDLITHIUM™ Advantage:

40% More Run-Time
20% More Speed
20% More Torque
Fade Free Power

Operates Down to 0°F/-18°C
Runs 20% Cooler
Up to 50% More Recharges
No Memory Effect


Fastener Range: 6D-16D
Blow Energy: 2.2 ft/lbsMilwaukee M12 Palm Nailer 2458-20
IPM: 2700
Height: 6.5in
Length: 7.5in
Width: 2.5”
Weight: 3.4lbs


  • 6D -16D Magnetic Collet – Industrial Magnetic Collet securely holds framing nails for one-handed use
  • All Metal Gear Housing – Handles tough job site conditions
  • Palm Style Ergonomics – Delivers Superior comfort and control
  • Powerful Mechanism – Delivers 2.2 ft/lbs of Blow Energy
  • LED Light – Illuminates work Surface
  • Compatibility – Works with both M12™Batteries and 25+ M12™Tools

First Impression:

The Milwaukee M12 Palm Nailer 2458-20 case is sturdy and held everything well.  I’m a huge fan of the metal or hard plastic case but Milwaukee did a nice job with this soft case.

The M12™ Palm Nailer weighs 3.4 pounds and is heavy but not a burden.  It fit well in my hand, and measures  6.5” from palm to tip.  The hand strap worked well to keep the tool snug in my grip.

Using The M12™ Palm Nailer:

After charging the battery about 15 minutes I immediately started nailing  approximately thirty  20-penny common nails into a spruce framing ledger board. I was impressed at how easily the M12™ Palm Nailer “powered” the nails right in.  It was great for installing joist hanger nails as well.  When I finished my project the M12™ Palm Nailer was still going strong on it’s original 15 minute charge.

The size of the M12™ Palm Nailer allows it to fit into all the tight spaces that your framing nailer won’t.  The built in LED light provides much needed light in those floor joist bays when nailing off joist hangers.

I also tried a 4 penny box nail more out of curiosity to see if it would mangle the nail.  The M12™ Palm Nailer drove it in fine. .

What’s In The Box:

  • 2458-20 Palm Nailer
  • M12™ REDLITHIUM™ Battery
  • 30 Minute Charger
  • Hand Strap
  • Tool Bag

Overall Impression:

I really thought the tool performed well.  It was extremely powerful and drove nails with ease, making those hard to reach nailing spots obtainable.  It did all that is advertised and more ~ very impressive.  The battery power was equally impressive and I never re-charged it during testing.

I started to think of what other uses this tool may be used for.   My plumber and electrician both told me they thought the M12™ Palm Nailerwould be an excellent solution for close nailing applications for blocking, strapping, recessed cans, electrical boxes, hangers etc.

The M12™ Palm Nailer is not a DIY tool but more geared for the professional contractor.

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About the author

Robert Robillard

Carpenter / Remodeler / Editor

Rob Robillard is “The Concord Carpenter” Rob is a builder, general contractor, carpenter, woodworker, and editor of Concord Carpenter and ToolBoxBuzz As a General Contractor and carpenter, Rob owns and operates Concord Carpenter LLC. A full-service remodeling and construction company. Rob is a recognized leader in home building best practices and a source for how-to information for building professionals. On this website, Rob covers all aspects of home construction, building science, home improvement, woodworking, remodeling, and some of the best product and tool reviews. Rob is in charge of our Tool and Product Review series - Concord Carpenter Videos where we post all of our tool reviews and video tutorials. Rob approaches remodeling and building construction with a pragmatic and problem-solving approach. He enjoys using his knowledge and experience to help and educate building professionals as well as DIYers on best practices in the construction and remodeling industry. He's a strong advocate for "raising the bar" in the construction trades and promoting the trades to youth. #BeAMentor #Green2Great Craftsmanship, quality, and pride guide his journey on this channel The Concord Carpenter's motto: "Well done is better than well said!" : Read more about Rob

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