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Mellif GRS01 Cordless Grease Gun
Pairs well with
In stock! Ships within 3-5 business days.
90-day risk-free trial
5-Year Warranty
Complimentary shipping & returns
Mellif GRS01 Cordless Grease Gun
Watch the Product Review
See how real users put the Mellif grease gun to the test. Watch hands-on demonstrations, performance reviews, and real-world scenarios to find out if this tool is the right investment for your projects.
Compatible with Dewalt 20V MAX Batteries
Designed to work with Dewalt 20V MAX batteries for cordless convenience. (Battery and charger not included; not affiliated with DeWalt)
Large Capacity & Extended Reach
Holds a 14 oz (400g) grease cartridge and features a 30" (76cm) flexible hose for easy access to tight and hard-to-reach areas.
10,000 PSI High Pressure Performance
Powered by a brushless motor, it delivers up to 10,000 PSI pressure and a 10 oz/min max flow rate for fast and efficient lubrication.
Smooth & Convenient Operation
Continuous pump mode allows easy start/stop control, while the air-bleeder valve ensures smooth grease flow by releasing trapped air.
Product details
What's in the Box?
- 1 × Cordless Grease Gun
- 1 × 30" (76 cm) Flexible Grease Hose
- 1 × Shoulder Strap
- 1 × User Manual
Battery & Charger Not Included
Specifications
- Complete Kit: Compatible With Dewalt Battery（Tool Only）
- High Performance: Up to 10,000 PSI, 10 oz/min flow rate.
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Large Capacity: Holds 14 oz cartridge with 30" hose.
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Safe to Use: Safety lock and low-voltage protection.
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Easy Operation: Continuous pump, air-bleeder valve, no-mar foot.
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Work Anywhere: Built-in LED for dark areas
User Manual PDF Download
FAQs
Will this grease gun damage my DeWalt batteries?
No. The mellif grease gun includes a built-in battery management and protection system that helps prevent over-discharge, over-current, and short circuits. When the battery reaches a low-voltage threshold, the system automatically stops operation to help protect your DeWalt batteries and maximize their lifespan.
Why won't my grease gun prime?
If your grease gun won't prime or pump grease, it's usually because air is trapped inside the pump after installing a new grease cartridge. This prevents the pump from building pressure.
Common causes include:
- Air trapped inside the grease gun (the most common reason).
- The grease cartridge is not installed correctly.
- The cartridge seal or pull tab was not completely removed.
- Loose hose or fittings allowing air to enter.
- Thick or cold grease that is difficult to pump.
- A clogged coupler or hose.
To fix the issue:
- Make sure the grease cartridge is installed correctly and all seals have been removed.
- Open the air bleeder valve to release trapped air.
- Hold the grease gun upright and run it until only grease (no air) comes out of the bleeder valve.
- Tighten the hose and all connections, then test again.
In most cases, properly bleeding the air will restore normal grease flow.
Can it handle tough grease jobs on tractors, trucks, or heavy equipment?
Yes. With up to 10,000 PSI high pressure, this cordless grease gun is built to handle demanding lubrication tasks on tractors, trucks, machinery, and other heavy-duty equipment.
What does the 5-year warranty cover?
Our 5-year warranty covers defects in materials and workmanship under normal use. This includes issues such as motor failures, electrical component defects, and product malfunctions caused by manufacturing problems.
The warranty does not cover normal wear-and-tear parts, such as blades, brushes, filters, seals, or other consumable components that naturally wear out during use. Damage caused by misuse, accidents, improper maintenance, or unauthorized modifications is also not covered.
If you experience any product issues, please contact us with your order information and product details, and our support team will be happy to assist you.