Usually a tapered or cylindrical axle, spindle, or arbor placed in a hole to support it during machining.
A metal bar which serves as a core about which material may be cast, molded, compressed, forged, bent, or shaped.
The shaft and bearings on which a tool is mounted.
Handle that holds a dental tool so that it may be easily positioned by the operator. A spindle or shaft designed to fit a dental handpiece for the purpose of using a variety of tools for grinding, polishing, or buffing.