Functions Install, Remove, Rethread, Clean Blocked Ports. Product Type Grease Zerk Tool / Grease Fitting Tool Set. Maintenance Tool Type Grease Fitting Tool / Zerk Tool. ????2 × Grease Zerk Tools. ???? Wide Thread & Hex Compatibility: Fits 1/8" NPT PTF & M10x1 (hex 3/8", 7/16") and 1/4"-28 SAE & M8x1 (hex 5/16", 3/8"), covering most standard grease fittings.
