A premium, heavy duty grease gun built tough for the professional, industrial markets. Added filler nipple allows three way loading; bulk, filler pump or standard 14 oz cartridge. Air bleeder valve easily purges unwanted air. Variable stroke for working in confined areas. Rugged electro-static epoxy coated finish resists corrosion. Deep knurling for non-slip grip. Heavy duty steel barrel for long life. Die cast head protects hardened steel plunger. T-handle posi-lock follower rod for sure grip and easy filling in any position. Comfortable sure grip rubber handle makes pumping easy and convenient. Complete with 6 inch rigid extension and heavy duty coupler. A must for heavy maintenance, industrial, automotive and farm use. Delivers 1 gm/stroke or 1 oz/28 strokes. Produces up to 10000 PSI.