... and well-chosen electric accessories minimize the failure rate cnc glass engraverSpecifications:Features: 1.Excellent design and well-chosen electric accessories ... Drilling on Natural stones,Granites,Artifical stones,Tombstones,Milestones,Ceramic,Glass and so on.Parameters: Working Area XXYXZ:600x900x300mm Max ... of X,Y axis Ball screw of Z axis. cnc glass engraver engraving machine for stone marble