The 20V MAX* 2-Speed Grease Gun powers through clogged grease fittings with a motor that delivers up 10,000 max PSI in speed 1. This tool is ideal for high-flow applications, with the pump pushing up to 9 oz. per minute in speed 2. Control grease flow with the variable speed trigger and reach hard to access grease fittings with the 40 IN. flexible hose.