CNC, PLC systems, CRT display. Applicable industry: Used for the drilling processing of tube plate, clapboard and flange of chemical machine, boiler, heat ... 2.Automatically find pot to drill holes in X, Y axis, Spindle rotation speed and feed velocity are stepless adjustment. 3 ... on lathe bed, using pressure plate to clamp work piece. 4.To seek work piece center in hand-operated wheel, thimble ...