Valve Spring Compressor C Clamp Service Kit Auto Motorcycle ATV Small Engine
* Fits Valve Retainer sizes of:    * 16mm (0.630") (OD) -14.5mm (0.571") (ID)    * 19mm (0.748") (OD) -16.5mm (0.650") (ID)    * 23mm (0.910") (OD) -21.5mm (0.846")  (ID)    * 25mm (0.980") (OD) -23.5mm (0.930")  (ID)    *  30mm (1.20") (OD) - 28.5mm (1.120") (ID)# Each collet length is 50mm (1.975") with window opening of 35mm (1.375")# Comes with five spring compressor adapters and three posts with thread length 70mm (2.750"), 75mm (2.950"),  main drive post 115mm (4.520")