Sold: An used SCA ø192mm Combination Chuck, Scroll and Independent and backplate

SCA Combination Chucks combine the advantages of a scroll chuck with those of an independent chuck.
Jaws may be adjusted individually with an independent operating screw. After the desired setting has been made, all jaws can then be opened and closed simultaneously with the use of a scroll key.

The jaws are reversible and may be used as inside or outside jaws.

Including:
Backplate thread 2.157 inch x 8 t.p.i (thread per inch)
Keys