The Groz 90°Grease Coupler is designed for right-angled discharge of grease and is best suited for effective lubrication of difficult and hard-to-reach grease fittings especially at low heights, even in challenging applications like Chrysler models. Featuring a hardened slot to reduce wear and a polyurethane seal for a secure fit on grease fittings, these couplers ensure efficient and leak-free lubrication. They are compatible with all standard grease guns and recommended for use with hand-operated grease guns