Dewalt DCGG571M1 20V Max Grease GunDewalt DCGG571M1 Features Power through clogged grease fittings with a motor that delivers up to 10,000 max PSI High volume pump pushes up to 5. 0 oz min for high flow applications Control grease flow with the variable speed trigger Reach hard to access grease fittings with the 42 in. flexible hose Locate hard to see grease fittings in dark work areas with the bright LED Pump filter screen prevents dirt and contamination from clogging the pump