Arbor Chuck
A screw chuck on the end of which is a threaded arbor for the reception of saws, laps, etc., which are clamped in position firmly by means of a nut or thumb screw as shown in Fig. 66.
How to true a balance, repair a chipped dial, temper a spring or test a stone — the working bench-book of the American watch trade, arranged A to Z.
A screw chuck on the end of which is a threaded arbor for the reception of saws, laps, etc., which are clamped in position firmly by means of a nut or thumb screw as shown in Fig. 66.