LINCOLN INDUSTRIAL 1.6 Right Angle Grease Coupler Grease Fitting Tool Steel The LINCOLN INDUSTRIAL LNI-5883 Slotted Right Angle Grease Coupler provides unparalleled access to hard-to-reach grease fittings, saving valuable time and effort in maintaining heavy-duty equipment. Its robust design and 1,000 PSI rating ensure reliable performance in demanding applications, making it an essential tool for any professional maintenance operation. This 90-degree grease coupler eliminates the need for replacing standard fittings with angled versions, streamlining the lubrication process and reducing downtime.