The Adapter is a form of a collet having a standardized spindle end. It is available in a different variety of sizes that cannot be mounted on arbors. Moreover, the collects are form of sleeve bushing for reducing the size of the hole in milling machine so that small shank tools can be easily fitted into large spindle recesses. It is made as per the different application requirements. Customers can easily get these Adapters and Collets (Bt30,Bt40) from us in different sizes and shapes.