Message to Our Customers


Model # 2446-20

Internet # 202438502

Store SKU # 309133

M12 12-Volt Lithium-Ion Cordless Grease Gun (Tool-Only)

This item has been discontinued.
The Home Depot no longer carries this specific product.

$129.00 /each



Model # 2446-20

Internet # 202438502

Store SKU # 309133

The Milwaukee M12 Cordless Lithium-Ion Grease Gun develops higher pressure, offers greater productivity, and gives the user more versatility on the job site, delivering over 8000 PSI max. It dispenses up to 7 grease cartridges per battery charge. It also features a lightweight, ergonomic handle design for greater comfort during prolonged use, on-board hose storage, a sturdy base stand and a shoulder strap loop.

  • Powerful 12-volt motor delivers over 8000 PSI max operating pressure
  • Air bleeder valve: priming mechanism for quick flow
  • Integrated hose storage and LED fuel gauge for convenience
  • Superior handle balance and ergonomics: only 14 in. long and 7.2 lbs.
  • Compatible with these chargers: M12/M18 multivoltage (48-59-1812), M12 AC/DC (2510-20), M12 30 min. (48-59-2401)
  • Compatible with these batteries: compact 1.5 Ah (48-11-2401), compact 2.0 Ah (48-11-2420), extra capacity 3.0 Ah (48-11-2402), extended capacity 4.0 Ah (48-11-2440)
  • Maximum durability: backed by a 5-year warranty
  • Red lithium advantage: productivity: 40% more run-time, 20% more speed, 20% more torque, fade free power. durability: operates down to 0/-18, runs 20% cooler, up to 50% more recharges, no memory effect
  • M12 Lithium-ion system: compatible with over 20 M12 lithium-ion tools for greater versatility in the workplace
  • Lithium-ion batteries and charger not included
  • Compatible chargers: M12/M18 multivoltage (48-59-1812), M12 AC/DC (2510-20), M12 30 Min. (48-59-2401)
  • Compatible batteries: compact 1.5 Ah (48-11-2401), compact 2.0 Ah (48-11-2420), extra capacity 3.0 Ah (48-11-2402), extended capacity 4.0 Ah (48-11-2440)
  • Includes: (1) 2446-20 M12 cordless lithium-ion grease gun
  • Home Depot Protection Plan:

    Home Depot Protection Plan

Info & Guides

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Air Inlet Size 
Product Depth (in.) 
Product Height (in.) 
9.75 in 
Product Length (in.) 
3 in 
Product Width (in.) 
3 in 
Air Tool Type 
Grease Gun 
Air consumption at recommended operating pressure (CFM) 
Housing Material 
No additional components or accessories are included 
Continuous flow 
Project Type 
Surface Prep 
Recommended operating pressure (psi) 
Tool weight (lb.) 
Tools Product Type 
Power Tool 
Warranty / Certifications
Manufacturer Warranty 
5 Year Limited Tool Warranty 


Rated 4.1 out of 5 by 10 reviewers.
Rated 1.0 out of 5.0 by took less than a week I purchased this grease gun on March 25, 2015 ran not quite three quarters of a tube of grease through it before it stopped pumping out grease. March 30, 2015
Rated 5.0 out of 5.0 by Worth the money I use this grease gun on a daily basis, going through around 3 tubes a day. Always pushes the grease and is easy to reload. May 12, 2015
Rated 1.0 out of 5.0 by Will not use standard grease cartridges Quality non-functional product - took first one I bought back to store because rubber seal too large - replacement same problem. Call customer support who will send out a new rubber seal that will fit into standard grease cartridge. Obvious design flaw since most of us will not bulk load grease guns. April 14, 2014
Rated 4.0 out of 5.0 by Working Great, does job well Gave as Birthday gift to son, he had a Lincoln before and it died before year is up. This one is still running and can grease his Semi/Trailer couple times before running out of battery. So far great purchase. side note: batteries for this puppy are pretty expensive, will see how long they last? August 19, 2014
Rated 5.0 out of 5.0 by Great Work Milwaukee Thanks Milwaukee for such a Innovation. It change my life. October 1, 2013
Rated 5.0 out of 5.0 by Easy to load I purchased this to grees all the areas on my bull dozers and tracktors and it does better than I thought it makes the job very easy April 29, 2014
Rated 5.0 out of 5.0 by Really like this tool Just used it for the 1st time to grease my truck. Love the long hose and the fact that I could hold the grease tip straight on the zerk with one hand and easily operate the grease gun (pull the trigger) with the other. Beats the manual tool big time! Had to look at directions to prime it on start up, so take a look at that - but it was very easy to do. Maybe it won't need prime next time I put a new grease cartridge in it?? February 18, 2014
Rated 5.0 out of 5.0 by can't beat it for preformance This is the 3rd unit we purchased, very happy with product January 7, 2014
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