IronGrip grease fitting coupler with twin-grip lock

The coupler slips off, and the grease ends up everywhere except in the bearing.

Anyone who has worked on tight bolts with a standard one-handed coupler knows what happens: busted knuckles, grease on the frame, and half the cartridge wasted. The IronGrip Dual-Handle Locking Coupler locks onto the grease fitting, stays in place without being held, and leaves both hands free to pump. The grease goes directly into the bearing—not onto the machine, the ground, or you.

Benefits

• No more busted knuckles: The dual-handle lock keeps the coupler firmly attached to the grease fitting, even under full pressure—no more fumbling or slipping in tight spaces.
• No more wasted grease: The 12,000 PSI inner seal forces every drop directly into the bearing, so you no longer lose half a cartridge or have to keep repeating the lubrication process.
• No replacement after one season: The hardened steel housing and high-strength spring stand up to years of daily use—you no longer have to worry about whether the coupler will still work the next time you use it.

Specifications

• Pressure resistance: Up to 12,000 PSI
• Thread type: 1/8" NPT
• Size: 9 × 1.4 cm
• Compatibility: Standard and metric grease fittings (90°, 45°, and straight)
• Material: Hardened steel
• Locking system: Dual-spring jaws
• Drive: Pneumatic, battery-powered, or manual

Use

1. Screw on: Hand-tighten the IronGrip onto the grease gun’s 1/8" NPT thread.
2. Lock on: Squeeze both handles, place the head on the grease fitting, and release—the jaws automatically grip and lock securely.
3. Pump & release: Pump with both hands, then squeeze the handles together, pull off, and move on to the next fitting.

Pro tip: For deeply recessed or hard-to-reach grease fittings on tractor joints, use a 90° adapter between the grease gun and the IronGrip so you can reach every fitting without angling the grease gun.