【Material】 High speed steel (titanium coated), Made of high speed steel (HSS), high hardness and rust resistance for long life. 【Function】 These are taps with drilling function , used to drill a hole and cut new threads at the same time, you will have a smooth tapping experience 【6 Size】 M3x0.5M4x0.7M5x0.8M6x1M8x1.25M10x1.5. There are a total of 6 pieces of taps in different sizes from M3 to M10 which you can use to tap various threads 【Convenient】 Complete drilling, tapping, deburring and milling in one operation allows you to 'save processing steps and time costs, improve working efficiency. 【Application】 Taps are designed with spiral grooves, and chip cleaning process would be better. These taps are used on a machine to perform tapping, generally more precise because human error is eliminated Material: high speed steel (titanium coating) Hexagonal shank: 6.35 mm (1/4 ") Standard: metric Thread size: M3, M4, M5, M6, M8, M10 Pitch: 0.5mm, 0.7mm, 0.8mm, 1.0mm, 1.25mm, 1.5mm Post: 60mm post Used on: machine Function: drilling Quantity: 7 pieces Note: this does not include other things, the color is based on the first picture, and other pictures only show the effect Due to the differences between different monitors, the picture may not reflect the actual color of the item. Due to manual measurement. Please allow deviation. Thank you!