• For use with most hand-operated grease guns and air-powered equipment
• Fits all 1/8" NPT threads
• 4500 psi (310 bar) maximum operating pressure
• Built-in spring-loaded ball check valve prevents leak, pressure loss and lubricant backup
• Four hardened steel jaws for a superior seal and longer life
• Precision Fit: slight pushing action snaps jaws onto fittings
• Small outside diameter permits easy contact with recessed fittings
• Knurled body and easy flats for easy installation and removal
• Zinc plated for maximum protection against corrosion