Features:1. The faucets are designed with spiral flutes, and the chip removal process would be better.2. Hole chamfering in one, easy to operate, hand drill, bench drill, hex chuck tapping machine available.3. Processing: wood, plastic, aluminum, tin alloy, magnesium alloy, workpiece thickness less than 5mm.4. There are totally 6 pieces of faucets in different sizes from M3 to M10, which can be used to thread different threads. Specification:Name: titanium thread metric hexagonal shank Material: HSS 4341 Color: Gold (as the picture)Tap Diameter: M3x0.5mm, M4x0.7mm, M5x0.8mm, M6x1.0mm, M8x1.25mm, M10x1.5mmQuantity: 1pcPackage Included:1pc Tapping Drill BitNote:1. Manual measurement, please allow a little error 1 - 2mm, thank you.2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Please allow slight color difference.