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1. Can drill deep hole with diameters 0.3mm ~ 3mm (the depth-diameter ratio is 300:1)
2. Can drill small holes on the various conductive materials, even semiconductor material, especially stainless steel, chilled steel, copper, aluminium and hard alloy etc
3. The operation is easy and convenient
4. X, Y, Z axes have digital display devices
5. Z axis has the function of setting depth
EDM drilling
