Ryobi Cordless Grease Gun P3410 Powers Up to 10,000 PSI!

Ryobi Cordless Grease Gun P3410

Ryobi Cordless Grease Gun Offers Pro Performance at a Budget-Friendly Price

Ryobi is the latest to enter the battery-powered grease gun game and the Ryobi P3410 looks pretty good at first glance. It boasts the same 10,000 PSI power that you see from its Milwaukee and DeWalt competitors. The Ryobi cordless grease gun sits right in between the two when it comes to flow rate. Its 7.5 oz/min rate exceeds DeWalt’s 5.0 oz/min and is under by Milwaukee’s 10.0 oz/min by the same margin.

Feature Set


Like its competitors, Ryobi centers around a rock-solid grease canister with a spring-loaded design. Loading is pretty much like any other grease gun.

  • Unscrew the canister from the main body
  • Lock the rod back
  • Remove the plastic end of the grease cartridge (back end)
  • Set the tube in the canister, open end first
  • Remove the pop cap seal from the front of the cartridge
  • Screw the canister back on
  • Release the rod
  • Bleed the air out
  • Grease to your heart’s content

It’s important to bleed the air out. To do that, just open the bleeder valve and push against the rod until you see a little bit of grease come through. Close the valve, wipe off the grease, and you’re ready to go!

Ryobi Cordless Grease Gun P3410

As you use it, markings on the rod give you a rough estimate of how much grease is left in the cartridge.

Ryobi Cordless Grease Gun P3410

Lock Off

There’s a lock-off switch in front of the trigger you can use to prevent grease from squirting out before you’re ready. The grease comes out pretty quick, so it can prevent a big mess.

LED Light

An LED light on the front gives you enough to work with if you happen to get caught in dark or low-light conditions.

Ryobi Cordless Grease Gun P3410

30″ Hose

The hose reaches out 30″, giving you a reasonable amount of working area. Milwaukee and DeWalt both give you longer hoses. The longer hoses are definitely helpful, but Ryobi’s isn’t too short by any stretch of the imagination.

Clips on either side of the canister let you control the hose when it’s not in use. I like that you can hook it on either side. For DIYers just maintaining trailers or light equipment, you can run opposite your carrying hand and save some extra grease stains on your pants.

Ryobi Cordless Grease Gun P3410

Know Your Grease

The Ryobi cordless grease gun handles up to NLGI #2 grease—roughly the consistency of peanut butter. The grease cartridge will say right on the front what its NLGI rating is if you’re not sure.


The Ryobi cordless grease gun is available at Home Depot for $119 as a bare tool and there’s no kit option. That’s about $60 less than options from Milwaukee and DeWalt options.

Want more? Check out this video from Shop Tool Reviews!

Ryobi Cordless Grease Gun Specifications

  • Model: Ryobi P3410
  • Power Source: Ryobi 18V One+ battery
  • Flow Rate: 7.5 oz/min
  • Max Pressure: 10,000 PSI
  • Hose Length: 30″
  • Grease Type: Up to NLGI #2
  • Capacity: 16 oz bulk or 14.5 oz cartridge
  • Warranty: 3 years
  • Price: $119
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