For over 20 years, Tronex manufacturing has focused on precision hand tools. All Tronex cutting tools and pliers are manufactured in the USA and individually inspected for proper performance. Tronex precision hand tools include many features to improve functionality. High-grade alloy steel enhances structural integrity and increases tensile and yield strength. Extremely close tolerances on mating parts increase top-cutter performance. In-house induction hardening of the cutting edges assure uniformity, conformity, and a 63-65 Rockwell rating.