RUKO 4-blade spiral step drill 6-12mm high speed steel Lunatech coating 101082P 1 piece

Catalog number: 101082P Features: ●Can drill holes in workpieces up to 10mm thick. ●Turbo tip shape eliminates the need for a center punch. ●RUKO's unique Lunatech coating ensures long-lasting sharpness. Applications: ●Cutting materials: Steel plates (strength 1300N/mm2 or less), H-shaped steel, stainless steel, aluminum, brass, plastic, wood, etc. (up to 10mm) Specifications: ●Step width (mm): 10 ●Number of steps (steps): 7 ●Shank diameter (mm): 6 ●Drilling dimensions (φ): 6, 7, 8, 9, 10, 11, 12 ●Total length (mm): 105 ●Surface treatment: Lunatech coating (titanium aluminum coating) ●Color: Purple ●Shank: Three-sided chamfer Material/Finish: ●High-speed steel