With a Rockwell Hardness measured at 56, MFC's tungsten carbide tiped nippers provides for a smooth, clean, effortless cut through tippet from 0X to 8X. Tungsten carbide also keeps the tips rust free and last up to 5 times longer than steel nippers. The wide --body ergonomic design allows you to even cut through braided nylon and fly line with very little pressure applied.