At Machine Tool Accessories we offer a range of CNC mill sub plates in our arsenal of equipment. Ranging from gridded fixture sub plates to T-Slot base plates. However, it must be noted that sub plates can have varying names in the industry. We have included this list here for ease of reference. Subplates can be known as mounting pads, subbases, and base plates. In terms of benefits of using sub plates. These can include a means to connection for valves, minimising leakages to dramatically simplifying work holding setups.