IronGrip Grease Nipple Coupler with Two-Handle Locking | Kalsten

The coupler slips off and the grease lands everywhere except in the bearing.

Anyone working with tight bolts using a standard single-handed coupler knows the result: smashed knuckles, grease on the frame, and half the cartridge wasted. The IronGrip Dual-Handle Locking Coupler locks onto the grease fitting, holds without needing to hold, and frees both hands for pumping. The grease goes directly into the bearing – not onto the machine, not on the floor, not on you.

Benefits

• No more smashed knuckles: The dual-grip lock holds the coupler securely on the grease fitting even under full pressure – no more fumbling and slipping in tight areas.
• No wasted grease: The 12,000 PSI internal seal pushes every drop directly into the bearing, so you don't lose half cartridges and don’t have to repeat the lubrication process constantly.
• No replacement after one season: The hardened steel housing with high-tensile spring withstands years of daily use – you don’t have to worry about whether the coupler will work on the next job.

Specifications

• Pressure Rating: Up to 12,000 PSI
• Thread Type: 1/8" NPT
• Compatibility: Standard & metric grease fittings (90°, 45°, and straight)
• Material: Hardened steel
• Locking System: Dual spring jaws
• Drive: Pneumatic, battery-powered, or manual

Application

1. Screw on: Manually twist the IronGrip onto the 1/8"-NPT thread of the grease gun – hand-tight is sufficient.
2. Engage: Press both handles, place the head on the grease fitting, and let go – the jaws automatically grip and lock securely.
3. Pumping & Releasing: Pump with both hands, then squeeze the handles together, pull off, and move to the next connection.

Pro Tip: For low or hard-to-reach grease fittings on tractor joints, use a 90° adapter between the gun and IronGrip – this way, you can access every fitting without having to tilt the gun.