The SnapLock� grease guns innovate the grease gun world with a patented "threadless" barrel and locking mechanism to secure the barrel in place. The aluminum barrels are lightweight to reduce fatigue during use. 3-way loading: 14 oz. cartridge, bulk or suction. An auto-bleeder valve and locking plunger make priming simple. Variable stroke for use in tight spaces. Best in class in the grease gun market. Includes 5-1/2" straight pipe, 18" flex hose and heavy duty coupler. Develops up to 8,000 PSI. Delivers 1 oz./40 strokes. Boxed. 5/master