... Speed Small Hole EDM Machine DS703A X Y axis DRO display High accuracy easy operate Micro Hole 0.3mm TM ISO9001 ... forward, backward, leftward and rightward of the work piece.The raster display shows the motion distance (position). 2 The column is fixed ... the spindle head lift mechanism, spindle head, worktable and digital display.3 The spindle head is located above the worktable.It ...