Page:Practical Treatise on Milling and Milling Machines.djvu/200

194 Milling Clutch Teeth

This operation is very similar in the way it is set up to the one of Milling Bolts previously described. The character of the cut, however, is lighter and the arbor is supported at the outer end on a centre, whereas in the other operation, the end of the arbor runs in the arbor yoke bearing. A cutter of special form is used, and one tooth is finished at each cut, the cut beginning at the outside of blank and finishing in the centre.

Indexing in this case is accomplished with the regular index plates and crank as the number of teeth required cannot be indexed with the plate on the spindle nose.