How to make a toothed blade well?

toothed cutting blade

This one type of toothed cutting knife, in 149.7x46x0.75mm, with Tin coating, used on packaging machinery, for cutting courier bags, tearable plastic bags, cut garbage bags, etc. We used carbon steel SK5(HRC52-54), carborn steel:SK7(HRC58-60),  SS420(HRC48-52), HSS(HRC60-64) three materials, but the testing result indicated HSS is the best one. The teeth is not so easy to process, it would … Read more