Seesii Electric Grease Gun 12000 PSI

Highlights

When a grease fitting is stubborn or tucked behind a suspension component, hand pumping can turn routine maintenance into a slow, awkward job. The Seesii cordless grease gun is built to deliver grease under pressure, with a 48-inch hose and couplers designed to make hard-to-reach fittings easier to access.

Its listed output is 12000 PSI and 10 oz/min, with six flow settings and two pressure modes. That gives you more control than a basic single-setting gun, whether you’re working on a tractor, truck, or other listed equipment. A solid pick if your maintenance involves a lot of fittings or clogged zerks.

The kit includes two rechargeable 2.0Ah batteries, a case, four couplers, and a steel-braided hose. The gun also provides audible and visual blockage warnings, plus an LED light for dim work areas. Keep in mind that the high output and multiple settings are more than a light, occasional lubrication job may call for, a simpler manual tool may be easier to justify for that kind of use.

How to use it

Load a standard 14 oz cartridge or use the bulk-loading method for grease from a pail. The sealed bleeder valve is intended to help clear air before you start, while the blockage alert signals when pressure builds or a fitting is blocked. Clear the issue and reset the tool before continuing, rather than continuing to force grease into a stalled connection.

Choose among the six flow settings and two pressure modes based on the fitting and task. Lower output gives you more control around components that need careful greasing, higher output is aimed at more demanding jobs. The product information lists compatibility with Makita 18V–20V Max batteries, though the kit itself includes two Seesii 2.0Ah batteries.

Practical tips

The long hose and quick-lock and 90-degree couplers are useful when a fitting sits behind a wheel, near a driveline, or in another cramped spot. For example, while servicing a tractor, you can position the gun on the ground and guide the hose to a recessed fitting instead of trying to line up a short nozzle in a tight space. The shoulder strap and work light are practical touches when moving around larger equipment or working in a dim shed.

Match the pressure and flow to the job instead of defaulting to maximum output. That can help limit wasted grease and reduce the chance of over-greasing, a benefit of having adjustable delivery rather than relying on a fixed-output gun. The 48-inch hose adds reach, but its length and routing still matter when access around a machine is especially restricted.

Practical doubts

What happens if a fitting is blocked? The gun gives audible and visual warnings when pressure builds or a blockage occurs. The listed instructions say to clear the issue and reset the tool before resuming.

Can it be loaded without a cartridge? Yes. The product information describes both standard 14 oz cartridge loading and bulk loading from a pail.

Does the kit include batteries? Yes. It comes with two rechargeable 2.0Ah batteries. Makita 18V–20V Max battery compatibility is also listed, but those batteries are not identified as included.

Final verdict

This kit makes the most sense for regular maintenance across farm, truck, or heavy equipment, where hose reach, adjustable output, and a blockage alert can save time and hassle. You may want to skip it if you only grease a few easy-to-reach fittings now and then, the extra controls and cordless kit may be unnecessary for that simpler routine.