Grease Gun Injector Needle For Use With Grease Gun Size 18 ga x 1 1/2 in Max Pressure 3 000 psi Min Burst Pressure 3 000 psi Working Pressure 3 000 psi Material Steel Features 18 ga x 1-1/2 in Long Needle Stainless Steel Includes Standard Frease Fitting and Protective Plastic