DeWalt 20V MAX* Grease Kits The 20V MAX* Grease powers through clogged grease fittings with a motor that delivers 10,000 max psi. This tool is ideal for high-flow applications, with the pump pushing up to 5 oz per minute. Control grease flow with the variable speed trigger and reach hard to access grease fittings with the 42 in flexible hose. . Pack of 1