Screw Extractor: Effortlessly removes broken grease fittings, making repairs a breeze. Manufacturer Part Number: Grease Fitting Tool Unit Quantity: 2.1 ounces Features: Easily install grease fittings,Easily extract grease fittings,Able to re-tap holes,Screw extractor,Easily install and extract grease fittings,Fits 1/4"-28 fittings,Fits M6x1 fittings,Fits M8x1 fittings,Hex size 3/8" (9mm) compatible,Large multi-tool available for 1/8" NPT fittings,Large multi-tool available for M10x1 fittings Type: Grease Gun.