Mini CNC Metal Engraving Machine -Water cooling spindle -all the machine in stock -best service Scope of application: ... processing line, arts and crafts line, metalwork line, can process double-colour board, pvc board, mould forming, board, copper, aluminum, ... diameter¢3.175 , ¢4 , ¢6 Work modeStepping(square linear guild with ball screw)Working dictateHPGL, G Code*.u00*.mmg*.pltSoftware operating ...