Description Universal professional grade clutch holder tool to help properly torque mainshaft nutCan be used with OEM or Hinson Clutch ComponentsProfessional grade construction from aircraft quality billet aluminumScrew adjustment to provide a secure fit on inner hub spline without damaging inner hubRemovable handle for easy storageWill work on most dirt bikes, ATVs & street bikes with an inner hub diameter range of 2 7/8?? ?C 4?? (70 ?C 101.6mm)When installed on inner hub handle designed to rest on footpeg (of most models) to help obtain proper torque of mainshaft nutDeveloped with and recommended to enhance the proper installation of Hinson clutch baskets and inner hubsUsed by top race team mechanics worldwide.