Over 3.5" of reach. Great for shielded PTO shafts, axles, harvester heads, U Joints and other recessed grease fittings.

• Rated to 10,000 PSI! Locks on, stays on. Does not leak once locked on.
• Hands-free - does not pop off under pressure.
• Easily release from fittings with the thumb lever, even at extreme pressure.
  
• No more broken Zerks
• Fits all standard Grease Guns - 1/8 NPT fitting. Fits all SAE and Metric Zerk fittings. Simply replace your existing coupler.
• Includes rebuild kit. Easily replace seal and jaws without replacing the coupler.