Duplex Toolpost Grinders Models: D22A, D22A/3, D27A, D27A/3, D28, D29. D30, D30A, D31, D31A, D31B, D34, D35, D70, D71, D72, D73. Includes Duplex Built Collace M34, M36 and Wolf-Duplex GL3. Instruction Manual and three detailed technical-specification catalogues.