Features Durable material: the butter gun coupling is made of alloy steel and is durable enough to be used all day long SUITABLE FOR MOST GREASE PRESSES: The portable grease gun coupling is suitable for all 1/8 inch NPT standard grease guns, pneumatic grease guns, manual grease guns, electric grease guns as well as all DIN and SAE nozzles and all SAE and metric grease gun accessories. Wide range of applications: this robust butter gun tool is suitable for car repairs, construction site machinery, axles and drive trains. Also ideal for lubricating agricultural tractors, plows, pile diggers, disc harrows, planters etc. Efficient and practical: the grease gun coupling supports efficient work and allows the handling of a wide range of machines in one machine. PERFECT REPLACEMENT Easy to install and use, just replace your existing butter gun coupler. Specification: Item Type: Grease Gun Coupling Material: alloy steel. Package list: 1 x grease gun coupler. Package List 1 x Grease Gun Coupler