General description Suitable for all sheet metal work and deburring of metals, non-ferrous metals, and plastics. This HSS step drill bit is designed for use with all standard drills. Technical specifications Material: HSS4241 Dimensions: 10 to 45 mm in 8 steps: 10, 15, 20, 25, 30, 35, 40, or 45 mm High heat resistance Long service life Usage This step drill bit is ideal for drilling through various materials, including metals and plastics, making it a versatile tool for both professionals and DIY enthusiasts.