☆ Drilling and tapping in one, one-step processing, greatly save processing steps and time costs, improve working efficiency.<br> ☆ Package Included:6pcs Drill Tap Countersink Set.<br> ☆ Metric Thread Size:#1 M10×1.5,2# M8×1.25,#3 M6×1,#4 M5×0.8,#5 M4×0.7,#6 M3×0.5.<br> ☆ Shank Dia:6.35mm 1/4 Hex Shank.<br> ☆ Suitable for drilling, tapping, cutting on soft metal, aluminum plate, iron, etc.<br>