DEWALT grease gun can power through clogged grease fittings with a motor that delivers up to 10,000 max PSIHigh-volume pump of the battery grease gun pushes up to 5.0 oz/min high-flow applications.The battery operated grease gun can control grease flow with the variable speed triggerReach hard to access grease fittings with the 42-inch flexible hoseLocate hard to see grease fittings in dark work areas with the bright LEDIntegrated no-mar foot design allows operators to rest the tool on flat surfacesAir-bleeder valve assists in pump priming after cartridge changes