Feature: 1. High Strength and Toughness: Made of high speed steel, which has good corrosion resistance, oxidation resistance, heat resistance, high strength, and high toughness 2. Higher Strength and more→Smooth Tapping: Straight flute cutting, 4 flute chip removal, possess higher tooth strength, smooth tapping 3. 10 Kinds of Specifications: Product specifications are M6x1, M7x1, M8x1.25, M8x1, M10x1.25, M10x1.5, M10x1, M12x1.75, M12x1.5, M12x1.25 4. For Various Materials: Suitable for tapping of 304 stainless steel thick plate, steel, aluminum, copper, wood, plastic, etc. 5. Not Easy to Rust: made with excellent craftsmanship, not easy to rust, more delicate and comfortable to hold Specification: …