The Mitutoyo 64PKA054B is a 2‑axis Digital Readout (DRO) retrofit package designed for engine lathes requiring 48" Z‑axis travel and 14" X‑axis travel. This system uses a combination of ABS electromagnetic AT715 scales and glass‑scale‑type AT116 encoders, paired with the KA‑212 dual‑axis counter. It is engineered to deliver extremely durable, coolant‑proof measurement feedback and precise positional accuracy.