Jeweling Chuck
The Hutchinson Jeweling Chuck, which is shown in Fig. 77, is intended as a substitute of wax, when manipulating jewels. The cut represents a full size chuck, which is made similar to the ordinary split chuck, but has an adjustable center which can be moved backward or forward by means of the screw in the rear, and is used to support the jewel while in place in the chuck. They are made in three sizes. Another form of jeweling chuck is shown in Fig. 78, and is known as the Deuss Chuck. It is a self-Centering chuck which will hold all sizes of jewels and fits the wheel or step chuck of all American lathes.