This is a manual Grease Gun used to pump grease into bearings, bushings, joints, and other components through a Zerk fitting. From the images, it appears that: * It is equipped with a 90° angled grease coupler for easy access to tight spaces. * At the front, there is a Needle Nozzle, used to inject grease into areas without Zerk fittings, such as some boots or joints. * It operates by manual pressure using the handle. Uses: * Lubricating vehicles (suspension joints, driveshaft, etc., if they have grease points). * Agricultural equipment. * Industrial pumps and bearings. * Heavy machinery