Features: * Durable and long service life. * High hardness, high temperature wear. * Handle made of steel with high quality bearing. * Suitable for bicycle repair, furniture assembly, machinery manufacturing, ect. * Suitable for wood, iron, aluminum , thin stainless steel and other materials. Instructions: (1) When tapping, insert the nose cone so that the center line of the tap is consistent with the center line of the drill hole. (2) Turn both hands evenly and press lightly to make the tap enter the cutter. After the cutter enters, there is no need to add pressure. (3) Each time the tap is rotated, it is reversed about 45 deg; to cut off the chips to avoid blockage. (4) Do not increase the rotation force if the tap is difficult to turning, otherwise the tap will break. Specifications: Product Name: Spiral Faucet Material: HSS 6542 Color: Black Type: M3, M4, M5, M6, M8 (1 each) Application scenario: Bicycle repairing, furniture assembly, machinery manufacturing, ect. Suitable for: wood, iron, aluminum, thin stainless steel and other materials. Quantity: 5pcs set Package includes: 5 tap Note: 1. Transition: 1cm = 10mm = 0.39 inch.2. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.3. Please allow slight manual measurement deviation for the data.