It is adopted hydraulic driving, the frame adopts steel-welded structure which has sufficient strength and rigidity. The machine is equipped with a power back gauge. On whicha manual fineadjusting device and a counter are fixed. There is a fast-adjusting mechanism for blade clearance, a shadow light device ensuring scribing cutting operation, a counter, a sensitive and reliable safety barrier. It can also be equipped with a support conveyor. The CNC machine is equipped with auto CNC system and high precision back gauge.