A fixed steady rest is used to support long workpiece held in chuck, to perform operations at the overhanging end.
Faceplates are used to hold work that is too large or of such a shape that it cannot be held in a chuck or between centers. Faceplates are equipped with several slots to permit the use of bolts to secure the work, so that the axis of the work-piece may be aligned with the lathe centers. When work is mounted off – center, a counterbalance should be fastened to the faceplate to prevent imbalance and the resultant vibrations when the lathe is in operation.
A travelling steady is fixed on the saddle of a lathe. What is the function of this steady rest is to prevent bending of long shafts due to cutting force
The matching scroll threads on the back faces of the chuck jaws of a concentric chuck are unequal in numbers but equal in pitch.