OTC's 5668 Universal Cylinder Liner Puller is designed to be used with an impact wrench (not included) for quick cylinder liner removal The spring loaded puller arms automatically adjust to fit the liner for a fast set-up time The low profile of this tool allows work in areas where space is limited Tool features a drive screw hex size of 1-1/8 inches and accommodates bore diameters from 3-7/8 inches to 6-1/4 inches, sleeve depths to 15 inches, and minimum liner wall thickness of 0.273 inch; Similar to Porta-Tool OE tool number PT-6400-C Compatible with Select Mack; Volvo; Detroit Diesel; International; Cummins (except L10 and C series); Cat 3176, 3196, 3300/3400/3500 Series, C10, C12, C15, C16; Maxxforce DT, DT360, DTA360, DTA466, DT466, DT530 (PLN), DT466E, DT530E, DT570, HT570