Product Brief Head is made up of alloy steel and sheet metal .Lever type action .Suitable for use of 14 oz grease cartridge or 500 gm bulk fill.Knurled barrel for Anti-slip grip.Produces pressure 6000 psi.Threads available in : 18 BSP.Duly fitted with 6"spout or 12" flexible hose and 4 jaw coupler.Air can be released either through air release valveor by half turn of steel head.