Head designed from sheet metal. Air can be released either through the filler nipple or by half turn of the head assembly. Produces pressure 6000 psi. Duly fitted with filler nipple. Knurled barrel for easy grip. Suitable for use of 15oz grease cartridge or 500 Gms. Bulk fill is Available with a 12" Long Flexible Hose with 11 jaw coupler. Threads on CNC Machines / Hydraulic Rolled Thread Machines for fast and easy reloading.