Pressol Sliding Coupling designed for 16mm flat-type grease nipples. Function: Delivers grease to moving parts in machinery and mechanical systems. Material: Constructed from high-strength forged brass for durability in workshop environments. Connection: Features a \(G1/8"\) female thread for connection to a grease gun. Design: Slide-on type coupler specifically for flat grease nipples with a head diameter of 16mm.