Features: Experience efficient drilling with the 4-42 mm HSS Titaniums Coated Step Drill Bit, designed for precise work on thin metal sheets, aluminum, plastic, and wood, offering versatility across multiple materials. Featuring a clear scale and step construction, this drill bit simplifies multi size drilling tasks, reducing the need for frequent bit changes, while its triangular shank ensures a nonslip, secure fit compatiblely with electric drills. Ideal for professional craftsmen, DIY enthusiasts, and metalworking users seeking reliable tools for their projects, this step drill bit caters to both skilled and hobbyist needs. Perfect for use in workshops and home repairs, this tool excels in drilling operations on metal plates, plastic, and wood, making it a essential addition to any toolkit. With its robusts HSS material and titaniums coating, this step drill bit delivers durability and precision, ensuring long lasting performances and superior result in every drilling task. Specifications: Component: Steel Color: As pictures shown. Total Length:Approx. 99mm/3.9in Quantity: 1pc Package Includes: 1pc Step Drill Bit note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.