Features: Versatile Bit Set - Pack of 7 metric tapping bits in different sizes (M3x0.5, M4x0.7, M5x0.8, M6x1 M8x1.25, M10x1.5, M12x1.75). High Performance - Drilling and tapping in one step, greatly reduce processing steps and time costs, improve work efficiency. Wide Application - Complete tapping bit set ideal for drilling, tapping, cutting wood, soft metal, aluminum plate, iron, etc. (Note: It can not work well with 304 stainless steel or high hardness metal.) Premium Quality - Made of high speed steel (HSS), high hardness, anti-rust, solid and durable. Quick Change - 1/4" hex shank fits power tools more easily and securely. Specification: Color: Sliver Material: High Speed Steel Shank Diameter: 1/4 inch (6.35mm) Quantity: 7pcs Type: Tap Drill Bit Size: M3x0.5: Total Length: 67mm, Spiral Length: 22mm, Drill Diameter: 0.5mm M4x0.7: Total Length: 67mm, Spiral Length: 22mm, Drill Diameter: 0.7mm M5x0.8: Total Length: 69mm, Spiral Length: 25mm, Drill Diameter: 0.8mm M6x1.0: Total
