Progressive die Main technical index: 1. Structure: precise four guide pillars ball bearing die sets, splitting..ed compound: 2. Material: various kinds of imported hard carbide, high-quality alloy steel; 3. Forming style: punch, bend, stretching, side blowing.side loose core; 4. Geometric shape precision, blanking point clearance evenness, service position precision, whole service position accumulated error, spare parts interchangeable precision≤0.005mm; 5. Work condition: used for high speed punch machine with 50~1400spm, continuously.automatically work; 6. Total life time: more than 50 million times punch.