Collets, Spindle Adapters and Quick Change .
Collets, Spindle Adapters and Quick Change Tooling . Figure 415. Solid and spring collets . Collets. A collet is a form of a sleeve bushing for reducing the size of the hole in the milling machine spindle so that small shank tools can be fitted into large spindle recesses (Figure 415). They are made in several forms, similar to drilling machine sockets and sleeves, except that their tapers ...