Scroll and gear mechanism is employed in

three-jaw chuck

Four-jaw chuck

magnetic chuck

collet chuck

one set of 'V' guideways and flatways

two sets of 'V' guideways and flatways

three sets of 'V' guideways and flatways

four sets of 'V' guideways and flatways

parallel to the axis of rotation

at any angle to the axis of rotation

perpendicular to the axis of rotation

either 'A' or 'B'

parallel to the axis of rotation

at any angle to the axis of rotation

perpendicular to the axis of rotation

either 'A' or 'B'

Mild steel

Lead

Brass

Aluminium