TEMCo Titanium Wire 28 Gauge 50 FT Surgical Grade 1 Resistance AWG ga 28 AWG, Average wire diameter: 0.0126 in. (0.32004 mm) Commercially Pure Titanium, Surgical Grade 1. Rated for temperatures up to 1670C (3038F). 100% MADE IN THE U.S.A. All TEMCo wire is produced and spooled right here in the U.S.A. PERFECTLY TENSIONED. Zero elongation, scratches or other flaws ensure quality wire on every spool. ZERO CONTAMINANTS. Clean production environment houses the spooling process. Hands-off computerized spooling eliminates skin salts and oils.