Delo Techniki 8-Step Metal Step Drill Bit (10-45mm) – 216450

This high-performance, cobalt-alloy step drill bit from Delo Techniki boasts exceptional wear resistance. Ideal for thin to medium-gauge sheet metal, it creates perfectly round holes without the need for centering tools. Featuring 8 steps (10, 15, 20, 25, 30, 35, 40, 45mm), a 13mm shank, and a 9mm step height, this durable bit is constructed from R6M5K5 steel with a hardness rating of 64-67 HRC. Perfect for professionals and DIY enthusiasts alike.