1. Thread Size: M3.5 x 0.6mm. Metric taps made of speed steel offer hardness and toughness for wear resistance, fast cutting speed, and long service life, making them ideal for general applications. 2. The tap can create threads or recut damaged or clogged threads. Ticoated taps deliver performance, durability, and extended lifespan, suitable for a wide range of uses. 3. Designed for machining through holes or blind holes, these mini metric taps are primarily used in watchmaking, lowhardness wood, and soft metals. Applying suitable tapping oil ensures quality internal threads and prolongs tap durability. 4. Featuring a straight flute design for efficient chip removal, these taps produce clean threads without burrs and operate in a righthand cutting direction. Micro taps are mainly used in clockmaking for machining holes in wood and lowhardness soft metals.