Air bleeder valve for priming, and bulk filler valve. Milwaukee M18FARMINGKIT2 18v 1/2 Impact Wrench, Grease Gun, Grinder Kit complete with 2 x 18v 5.0ah batteries, fast charger and bag. The item milwaukee 18v 3 piece kit m18gg grease gun, angle grinder, 1/2 impact wrench is in sale since Friday, October 9, 2020.