US PRO 51 Pezzi Set di Punte Metriche HSS per Ingegneri 1 - 6mm 2619
Made from 6542 high-speed steel. This is the very best grade of HSS steel. US PRO Tools 4pc Drill and Countersink Bit Set Quick Change HSS-G 7126. US PRO Tools 7pc Tapered Drill & Adjustable Countersink HSS-G Set 7127.