M35 HSS Step Drill Bit Coated with Spiral Flute Triangular Shank Hole Cutter Tools of High Hardness Hole Enlarger(4-20 Ninth Level)

AccessoriesWear resistance: M35 high-speed steel has excellent wear resistance, allowing the step drill bit to keep its blade for a long time and extend its service life.High temperature resistance: M35 high-speed steel can withstand high temperatures during high-speed drilling and is not easily dull, improving cutting efficiency.High Hardness: M35 high-speed steel has higher hardness, which helps in efficient cutting on different types of materials, including steel, iron, stainless steel, alloys and other materials.High Precision: Step drill bits are manufactured with high precision, producing accurate hole diameters and smooth surfaces, reducing the need for subsequent machining.Step design: The step drill bit has multiple gradually increasing cutting edges, which can complete drilling of multiple different hole diameters at one time, improving efficiency and reducing the number of tool changes.

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