Wide Application: For Harley Davidson Twin Cams / Big Twin 2007-2017, For Harley Davidson Dyna 2006-2017, For Harley Davidson Electra Glide 2007-2019, For Harley Davidson Heritage Softail 2015-2017. Function: Professional tool is a main shaft sprocket wrench tool for 2 1/4" nuts with threaded bushings. There is a 1/2" driver on the back of the tool. Fits a 1/2" ratchet/breaker lever. Not suitable for impact guns. Easy to use: Easily remove and install the Right-handed nut holding the trans sprocket. Turn Nut clockwise to tighten and counter clockwise to loosen. Upgrade Design: .