The Excelta C7000X cutters are made from the highest grade AISI 52/100 carbon steel with tungsten carbide inserts. The extremely hard cutting edge (79-81 Rockwell "C") is excellent for cutting most types of medical and hard wires (including Nitinol). They feature a Lazer Flush™ cutting edge, extreme tip geometry for critical access to coils, ESD-safe handles, stainless steel springs and our new LazerLok™ joint system. The unique Set-Screw prevents over-travel of the cutting edges and prolongs their life. The C7000XS cutters feature STAINLESS STEEL bodies.