High-speed Steel Thread Spiral Screw

This High-Speed Steel Thread Spiral Screw is the perfect tool for your repair job, DIY project or machinery work where metric threads are specified. It is suitable for soft tapping metal, aluminum, iron, ...etc. The screws are multi-coated to maintain its brightness and sharpness. They come in various sizes, rest assured that you'll find one to fit your specific needs.   Features: ·       Color: Silver ·       Materials: High-Speed steel (HSS) ·       Shank Diameter: (6.35 mm) hex    Sizes: ·       M3 x 0.5 (6-32NC) total length: 55 mm; Spiral length: 24 mm; drill diameter: 2.5 mm ·       M4 x 0.7 (8-32NC) total length: 54 mm; Spiral length: 24 mm; drill diameter: 3.3 mm ·       M5 x 0.8 (10-32NC) total length: 58 mm; Spiral length: 28 mm; drill diameter: 4.2 mm ·       M6 x 1.0 (10-24NC) total length: 58 mm; Spiral length: 28 mm; drill diameter: 5.0 mm ·       M8 x 1.25 (12-24NC) total length: 59 mm; Spiral length: 18 mm; drill diameter: 6.8 mm ·       M10 x 1.5 (1/4-20NC) total lengt