Feature: Taps are designed with spiral and the chip clearing process would be better. Hole tapping chamfering in one, easy to operate, hand drill, bench drill, hex chuck tapping machine available. Processing: wood, plastic, aluminum, tin , magnesium , workpiece thickness less than 5mm. There are totally 12 pieces of taps in different sizes from to M10 that you can use for tapping different threads. Specification: Product Name: Hex Titanium Plated Thread Metric Tap Material: metal Color: Gold Tap Diameter: M3x0.5mm, M4x0.7mm, M5x0.8mm, M6x1.0mm, M8x1.25mm, M10x1.5mm Package Contents: 12 x Tap Drill Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.