The Lincoln 5900 PowerLock Lever Action Grease Coupler is designed for efficiency and durability, making it essential for grease gun users. it is advanced PowerLock lever action ensures a secure, leak-free connection, minimizing grease waste and mess. Featuring a quick-connect fitting for fast attachment to standard grease guns and a reverse jaw for a firm grip on various grease fittings, this coupler prioritizes user comfort with an ergonomic design and flexible rubber sleeves for a secure grip. Made from durable steel, it withstands demanding environments like automotive workshops, farms, and industrial settings.