The Lincoln 4417 Pneumatic Single Acting Grease Pump with Drum Dolly is an industrial-grade tool for efficient high-pressure grease delivery, boasting a 40:1 ratio. it is designed for standard 120lb drums, making it ideal for automotive workshops, fleet maintenance, and manufacturing plants. The included drum dolly with 4 swivel casters ensures smooth mobility for easy transport across job sites. With a 7' high-pressure hose, control valve, universal swivel, and coupler, it allows for precise grease application to bearings, gears, and other components in machinery and agricultural equipment. The standard follower plate ensures consistent grease flow and prevents air pockets.