The 80-Series cutters feature carbon/chrome ball bearing steel which provides incredible impact resistance and resiliency with smoother, cleaner penetration at the cutting edge. CNC machining of forged blanks guarantees edge angle accuracy and contact which increases tool reliability and consistance. 63-65 HRC on cutting edges. Low profile adjustable screw joint minimizes friction and maximizes alignment of cutting edges. Due to the long life of these tools, replaceable springs help reduce down time and stocking of extra tools. Cutting Capacity is 0.2 to 1.25mm.