Seesii GR05 Cordless Grease Gun, 10,000 PSI, 5.8 oz/min, 48-Inch Hose

With a 14 oz (400 cc) capacity, the Seesii GR05 cordless grease gun is built for routine lubrication across tractors, trucks, trailers, and heavy equipment. Its maximum working pressure of 10,000 PSI and flow rate of up to 5.8 oz/min support steady grease delivery, while the lock-on trigger keeps the gun running without continuous trigger pressure.

The 48-inch flexible hose helps reach fittings tucked behind guards, beneath equipment, or around wheel hubs. An integrated LED light illuminates the work area, and the hose clip keeps the hose secured for storage and transport.

At a glance

This electric grease gun combines cordless operation with a long hose for maintenance tasks where fittings are spread across a machine or difficult to access. The included 2.0 Ah battery powers the tool, and its capacity is 14 oz (400 cc). It works with NLGI #0, #1, and #2 grease, making it suitable for a range of common equipment-lubrication jobs.

The lock-on trigger is useful when servicing multiple fittings in succession: press it to maintain continuous delivery rather than repeatedly pumping a manual gun. A quick-release coupler supports fast connections, while the needle dispenser, tip nozzle, and flat coupler provide options for different fitting and application needs. The built-in LED can help illuminate grease fittings and nearby components in barns, garages, workshops, and undercarriage areas.

Buyers speak positively about the gun’s quality, while feedback about the greasing process is mixed. One buyer reports that it uses about 80% of the grease. These comments offer varied perspectives rather than a single shared experience.

Usage tips

Choose NLGI #0, #1, or #2 grease to match the lubrication job. Select the attachment that suits the fitting: the quick-release coupler is designed for a fast connection, the needle dispenser and tip nozzle support more precise application, and the flat coupler is intended for flush or hard-to-reach fittings. The flexible hose gives you room to position the gun while keeping the nozzle at the fitting.

For a practical service routine, use the LED to locate fittings in a dim equipment bay, connect the appropriate coupler, and engage the lock-on trigger for continuous delivery. When the task is finished, secure the hose with its storage clip to keep it organized during transport or between jobs.

Who it’s for

The GR05 suits farmers, fleet mechanics, construction workers, equipment operators, and maintenance professionals who regularly grease machinery. Its 48-inch hose and selection of application attachments are useful when servicing tractors, skid steers, excavators, trailers, trucks, and other agricultural or heavy equipment. The cordless format also offers a different approach from a manual grease gun for people who work through multiple fittings and want continuous powered delivery.

It’s a great fit if your maintenance routine involves repeated greasing, hard-to-reach zerks, or work in low-light areas. The lock-on trigger, hose length, and built-in light each address a practical part of that job.

When it makes sense

Choose this Seesii when you want one cordless tool for recurring equipment lubrication, with pressure up to 10,000 PSI, a flow rate up to 5.8 oz/min, and attachments for different grease-delivery tasks. For example, a maintenance worker servicing a tractor can use the flexible hose to reach fittings around guards and hubs, then use the LED to see the connection clearly in a dim shop.

Compared with a manually pumped gun, the GR05 is designed to deliver grease continuously with a lock-on trigger, which makes it especially relevant for longer service rounds. Its capacity, included battery, hose clip, and varied coupler options make it a practical choice for users who want a dedicated powered grease gun for regular work on vehicles and heavy equipment.