Dean, Smith and Grace Type 15, 17 and 17T (toolroom version) Lathes: A complete data pack for these superb, high-class and popular lathes: Operator's Instruction, Maintenance and Parts Manuals as sectional drawings - three editions in one covering both early and late models, their different gearboxes with specific screwcutting instructions and screwcutting charts for inch, metric, diametral, B.A. and module pitches together with the special features of the 17T toolroom version.