•Multi-Functional Drill Set: This 6-piece spiral tap drill set is designed for deburring, chamfering, and drilling, providing a versatile solution for various materials •High-Speed Steel Construction: Crafted from premium high-speed steel, these drill taps are durable and capable of handling high-impact applications with precision and efficiency •Wide Application: Suitable for punching holes in sheet metal, steel, aluminum, brass, and wood, making it ideal for a range of DIY and professional projects •6 Sizes: Includes six different sizes, from M3 to M10, allowing you to work on different screw and bolt threads with ease •Spiral Groove Design: The spiral groove design improves the chip removal process, ensuring smoother and faster drilling and tapping in both manual and power drilling operations Specifications: •Product material: high-speed steel •Long type size: •M3, total length 66mm, drill length 76mm, tap length 10mm, tap spacing 0.5mm •M4, total length 67mm, drill length 7.4mm, tap length 12.7mm, tap spacing 0.7mm •M5, total length 67mm, drill length 6mm, tap length 14.5mm, tap spacing 0.8mm •M6, total length 68mm, drill length 7mm, tap length 16mm, tap spacing 1mm •M8, total length 69mm, drill length 11mm, tap length 23mm, tap spacing 1.25mm •M10, total length 71mm, drill length 11.5mm, tap length 21mm, tap spacing 1.5mm •Short type size: •M3, total length 55mm, drill length 6mm, tap length 10mm, tap spacing 0.5mm •M4, total length 55mm, drill length 6mm, tap length 10mm, tap spacing 0.7mm •M5, total length 57mm, drill length 7mm, tap length 11mm, tap spacing 0.8mm •M6, total length 57mm, drill length 7.7mm, tap length 11mm, tap spacing 1mm •M8, total length 58mm, drill length 7.5mm, tap length 16mm, tap spacing 1.25mm •M10, total length 58.5mm, drill length 11mm, tap length 16mm, tap spacing 1.5mm Package included: •6 x Spiral Tap Bits