... 2.Good interchangeablity & high strength 3.Smooth surface Taper Bush:1. European Standard Type: 1008, 1108, 1210, 1215, 1310, 1610, 1615, 2012 ... . Standard method for measureing keyseat depth.2. Excellent and high quality control, advanced producing equipment.3. Easy to install with long ... of flexibility.4. OEM and Customized available with fast delivery. Good-quality Bush