Hardinge Model HC, HCT and HCR Chucking Lathes. Comprehensive Operator's Instruction Manuals. Two editions, early and late, are included together with a separate publication giving detailed instructions for the Automatic Threading Unit (HC-T) and Pneumatic Bar Feed. separate publications one for the Automatic Threading Unit and another for the Bar Feed. Also included is an electrical schematic. A complete operation data pack for this lathe.