The 80-Series pliers feature carbon/chrome ball bearing steel which provide 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 consistency. 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. Pliers also feature a specially forged box joint with extra long contact surfaces. This provides high quality and longer life. Top quality carbon/chrome steel construction. All pliers are smooth unless othwise noted.