The 20V MAX* Cordless Grease Gun powers through clogged grease fittings with a motor that delivers 10,000 max PSI. This battery powered 14 oz grease gun is ideal for high-flow applications, with the pump pushing up to 5 oz. per minute. Applications include marine grease gun and automotive grease gun. Control grease flow with the variable speed trigger and reach hard to access grease fittings with the 42-inch flexible hose.