Harbor Freight Tools


20V Cordless Variable Speed Grease Gun - Tool Only

This professional grease gun delivers 5 oz./min. of grease at 10,000 PSI for smooth, precise and continuous grease flow

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The HERCULES™ 20V Cordless Grease Gun delivers up to 5 oz./min. of grease at 10,000 PSI with a variable speed control for smooth, precise and continuous grease flow. The 48 in. flex hose with anti-kink spring guards delivers maximum reach for lubricating hard to reach fittings in automobiles, RVs, construction equipment, and agricultural equipment. The 14.5 oz. stainless steel barrel cartridge with non-flip follower accepts cartridge or bulk grease. Includes built-in hose and coupler storage.

  • High-performance industrial strength motor has variable speed control for flow rates up to 5 oz./min.
  • 10,000 PSI max for high pressure output for thorough packing
  • 14.5 oz. high capacity stainless steel barrel accepts cartridge or bulk grease
  • 48 in. flex hose with anti-kink spring guards for maximum reach
  • Ergonomic grip with shoulder strap mounts for easy transport
  • All metal drivetrain for added durability and extended tool life
  • No-mar foot design protects surfaces
  • Accessory port for adding bulk filler nipple
  • LED light for dark workspaces
  • Shoulder strap included

Replacement Parts in Stock

Call to Order: 1-800-444-3353

View Available Parts

Important Information

  • Tool only - Requires HERCULES™ 20 volt battery and charger, both sold separately.

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Fitting size (in.)
7/16 UNEF
Flow rate
5 oz./min.
Battery type
Battery voltage (volts)
Battery(s) Included
14.5 oz.
Hose Length
48 in.
Product Weight
8.6 lb.
Shipping Weight
10.00 lb.
Thread size
1/8 in. NPT
CA Residents
Warning - Prop 65 Info
Note: Specifications are approximate and subject to change

We guarantee the emissions control system on your engine will be free from defects in material and workmanship for two (2) years, provided there has been no improper maintenance, misuse, or abuse of your engine. We guarantee this product to be free from defects in materials and workmanship for 90 days from the date of purchase. Limitations apply.