Welcome to our store! These spiral flute taps are made of high speed steel and the surface is titanium coated for long life There are has total 6 pieces of taps with different sizes of M3, M4, M5, M6, M8, M10 The taps are designed with spiral flutes They are taps with drill function, used to drill a hole and cut new threads at the same time These taps are used on a machine to do the tapping, usually more accurate as human error is eliminated Scope of delivery: 6 pcs Product color: Gold Product size: m3 ~ M10 Note: manual measurement, please allow 1 - 3cm error!!! 100 % Satisfaction - Our customers are our priority.If you find any problems with the products after receiving the goods, such as damage and incorrect quantity, please contact us immediately.We do our best to provide you with satisfactory after-sales service.