Lathe. > 8.5x20 Lathe (C4/SC4) Accessories. Steady rests, stands, faceplates, and other accessories for C4 and SC4 bench lathes. This list shows products that are specific to C4 and SC4 lathes. For products that work with many different lathes, such as live centers, see Lathe > Tooling. Jump to: A-D F-R S-T.