Balcrank High-Pressure Z-Swivel for Grease Control Handles measures 1/4 NPT(F) x 1/4 NPT(M) and allows swivel action for better control. Installed between a grease handle and fluid hose for freedom of motion, the unit includes low-friction ball bearing swivels with high-pressure packings (6000 PSI max), featuring an all-steel construction.