Drill Accessory 7 Piece Combination Drill and Tap Set Metric HSS Thread M3-M12 Quick Change Tapping Drill Bit Tool 1/4 Inch Hex Shank Silver

Features: Multipurpose 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 - One-step drilling and tapping 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 cannot work well with 304 stainless steel or high hardness metal.) Premium Quality - Made of high speed steel (HSS) high hardness anti-rust strong and durable. Quick Change - 1/4 hex shank fits power tools more easily and securely. Specification: Color: Ribbon Material: high speed steel Shank diameter: 1/4 in (6.35 mm) Quantity: 7 pieces Type: Tapping drill Size: M3x0.5: total length: 67 mm spiral length: 22 mm drill diameter: 0.5 mm M4x0.7: total length: 67 mm spiral length: 22 mm drill diameter: 0.7 mm M5x0.8: total length: 69 mm spiral length: 25mm drill diameter: 0.8mm M6x1.0: Total length: 68 mm spiral length: 25mm drill diameter: 1.0 mm M8x1.25: total length: 71 mm spiral length: 38 mm drill diameter: 1.25 mm M10x1.5: total length: 72 mm spiral length: 38 mm drill diameter: 1.5 mm M12x1.75: total length: 81 mm spiral length: 46 mm drill diameter: 1.75mm Application: Suitable for soft metal aluminum iron steel board and stainless steel of 2mm or less Packing list: 7 * drill bit hex shank