Feature:1. These tools are often used for woodworking to drill oblique holes and are often installed on electric drills.2. Made of high‑speed steel, has high strength and wear resistance, suitable for most materials.3. Spiral chip flute design, chip evacuation more smoothly, can improve drilling efficiency.4. 9.5mm round shank size is standard, suitable for installation on a variety of electric tools.5. Used with wrench and accessories, it is convenient for woodworkers to quickly locate and punch holes.Specification:Item Type: Spiral Drill BitMaterial: High speed steelColor: SilverShank Diameter: Approx. 9.5mm / 0.4in Package List:1 x Drill Bit1 x Accessories1 x WrenchNote:After the drill tip is against the wooden board in the slant hole device, lift it up a little bit, then start the electric drill, wait for the electric drill speed to rise, and then perform the uniform speed down drilling.