6PCS High-Speed Steel Thread Spiral Screw Kit

High-speed Thread Spiral Screw is ideal for auto repair and machinery where metric threads are specified. It is suitable for soft tapping metal, aluminum, iron etc. 

Description:

• Color: Silver, Gold
• Materials: High-speed steel (HSS)
• Shank Diameter: ¼ inch (6.35 mm) hex
• They are multi-coated to remain bright and sharp
• The silver are white diamonds, metallic qualities, the surface of the gold are titanium, golden yellow, for rust prevention

Size:

• 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 length: 59 mm; Spiral length: 20 mm; drill diameter: 8.5 mm