Features SUPERIOR STRENGTH & DURABILITY This step drill bit is made of 4241 high speed steel and is designed for durability. It offers exceptional strength and durability and ensures long-lasting performance. INCREASED HARDNESS The nitride surface treatment increases the hardness of the drill bit and makes it even more resistant to wear. This ensures a longer life and reduces the need for frequent replacement. VERSATILE DRILLING CAPABILITY With the ability to drill and expand holes in iron and aluminum sheets up to 2mm thick, this step drill offers versatile functionality. It provides effective drilling solutions for a variety of materials. COMPATIBLE WITH VARIOUS TOOLS This step drill bit is designed to work seamlessly with electric drills, bench drills and other similar tools. It provides comfort and flexibility for various drilling applications. UNCOMPROMISED QUALITY & COST SAVING With its excellent quality and long service life, this step drill bit offers exceptional value for money. Its durability and reliability save you the cost and effort of frequently replacing worn drill bits. Specification: item type: step drill Material: high-speed steel. Surface treatment: nitride black Total length: approx. 100 mm. Package list: 1 x step drill Package List 1 x Step Drill Bit