Drill chuck for clamping axial tools - has inner thread of body corresponding to outer thread of cylindrical inner part which slides on cylindrical body face

摘要

The inner thread (2) of the chuck body (1) corresponds to the outer thread (12) of the cylindrical inner part (11) which slides on the cylindrical body face. The axis of the over throw parts (9) and that of the chuck are the same. The conical inner part surface is guided by the conical faces of the jaws. The attachment of the chuck body to the tool machine is formed by an inner cone, an inner thread, a threaded journal or a taper plug. ADVANTAGE - Is not liable to clog with dirt and the precision of centring is improved.