Index Toolholders and Tools for Lathes 12, 18, 24, 25, 36 & 52. Detailed Dimensioned Drawings INDEX Toolholders and Tools for Lathes 12, 18, 24, 25, 36 & 52. Detailed Dimensioned drawings. Manufacturers: Index Models: 12 18 24 25 36 52 Contents: Technical Drawings