Feature:1. High Strength and Toughness: Made of high speed steel, which has good corrosion resistance, oxidation resistance, heat resistance, high strength, and high toughness2. Higher Strength and Smooth Tapping: Straight flute cutting, 4 flute chip removal, possess higher tooth strength, smooth tapping3. 10 Kinds of Specifications: Product specifications are M6x1, M7x1, M8x1.25, M8x1, M10x1.25, M10x1.5, M10x1, M12x1.75, M12x1.5, M12x1.254. 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 holdSpecification:Item Type: Hand Tap SetMaterial: High speed steelUses: Suitable for tapping on 304 stainless steel thick plates, steel, aluminum, copper, wood, plastics, etc.Product Specifications: M6x1, M7x1, M8x1.25, M8x1, M10x1.25, M10x1.5, M10x1, M12x1.75, M12x1.5, M12x1.25.Package List:10 x Hand Tap