Vent valve for purging air from gun.Jam-proof toggle mechanism prevents binding or accidental bending of plunger.Precision fit and hardened plunger prevents lubricant bypass, resists scoring for longer life.Rugged cast iron pump head for strength and durability. Delivers fast, dependable lubrication.Follower rod locks into follower to force prime.Exclusive "Flip-Over" follower allows a superior seal for either cartridge or bulk loading applications. Tough, resilient and impervious to lubricant.Extra-heavy follower spring insures positive priming and uninterrupted pumping action.Accessible check valve allows easy cleaning without gun disassembly.Spacer located on follower rod handle prevents finger pinching.Two-way filling, suction and cartridge.Longer handle for increased leverage.Variable stroke/variable pressure: short stroke - high pressure; long stroke - high volume.Heavy gauge powder coated steel barrel.Lincoln 1148 Lever Type Grease Gun w/ Handle Grip
