• Reinforced jaws and quality sealing gasket ensure long lasting and stable performance, prevent leakage even at 12,000 PSI extreme pressure • Built with premium quality Zinc Coated Alloy Steel for continues use in the shop or garage • Heavier and stronger than most other grease couplers on the market • A smooth retraction mechanism allows one-hand operation • Once the coupler is locked on the zerk fitting, it stays on freeing both hands to operate the grease gun • 1/8 NPT fits all standard, mini, air, and cordless grease guns
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