... mm 2. HSD spindle 3.stepper motors 4.DSP control CNC Engraving Machine RC1325With hard steel structure, is fit for hard wood ... the best quality parts for the CNC routers:1. The machines’ body is strong, rigid, high precision, reliable and durable.2. ... driven motor to ensure that the machines high speed and accuracy5. Designer perfectly, select the best machine accessories , to minimize the failure rate ...