The M Series is designed for mixed-volume, short-run, JIT operations as well as dedicated, high-volume applications. With a swing of 20", the lathe combines high performance turning and large machining capacity within a 124.02" x 64.96" footprint. Rapid traverse rates of 394 imp (X axis) and 295 (Z axis) mean accelerated machine cycle times and reduced non-cut time, which increases overall throughput. Also, said to increase cycle time is an optional automatic electric turret offering a fast 0.48-second index, station-to-station. The turret holds eight tools with pockets for square toolholders and bolt-on ID tool blocks.

The M 20 has a cast iron "H" bed design. All guideways are induction hardened and ground and feature a Turcite-coated carriage and cross-slide that move smoothly on the solid bed and saddle guideways. The machine offers three bed-length options: M 20 x 40, M 20 x 60 and M 20 x 80. Distance between centers is, respectively, 43.15", 62.84" and 82.52".