Description: Made from high quality HSS steel The ladder of its unique structure, a bit can open a variety of specifications of aperture Step drill 10-45mm (8 steps: 10,15, 20, 25, 30, 35, 40, 45mm) Deburring, chamfering, elliptic hole enlargement, twist drill, drill, bench drill Suitable for using to cut holes in various materials such as steel, wood, plastic, etc Specification: Shank: Round handle Material: 4241 high-speed steel (suitable for use in the workpiece, hardness of 25 degrees such as carbon steel, plate, insulation board, PVC board, wood, sheet thickness below 5mm) Shank Diameter: Approx. 12mm/ 0.47inch Each Step Height: Approx. 5mm/ 0.20inch Package Includes: 1 Piece Step Drill Bit Note: Please allow 1-2mm differs due to manual measurement, thanks. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Please understand, Thank you!
