Page:Practical Treatise on Milling and Milling Machines.djvu/201

Rh Milling End Teeth in End Mill

When it is required to mill end teeth in an end mill, it may be done as shown in the illustration above.

The mill is held by its shank in a collet that is inserted in the spiral head spindle. The spiral head is adjusted to an angle to give the correct form to the teeth.

An angular cutter is used and the table is fed longitudinally. Indexing is accomplished with the index plates and crank in the usual way.

Oil is used, as the material of the end mill is tool steel.