Ultra multi-channel electrode tube
2 Hole : 2 Nomal Type, Web type
EDM Electrode Tube A web rod inside and available 2 hole only
Cylinder tubes inside like number 8 and available 2holes
3 Hole : 3 Nomal Type, Y type
EDM Electrode Tube Segment tubes inside and available over 3 hole
Cylinder tubes inside and available over 3 hole