Thread Size: M10 x 1.5mm. High-speed steel taps are with high hardness and toughness for wear resistance, well suited for general purpose applications. Can make new threads or re-thread damaged or jammed threads. Uncoated taps feature just the base substrate without any additional coatings, and fit a wide range of applications. Suitable for most metals, iron plate, copper, zinc, alloy steel, abrasive steel, A3 steel, stainless steel, etc.. Appropriate addition of coolant (e.g., water) can extend the service life when tapping. Standard metric thread design, clear and tidy, provide rapid chip removal for efficient threading. The taper taps can be applied for threading machine and electric drills, use to cut thread inside hole, creating a female surface which functions like a nut. Thread Size: M10 Shank Width: 6.2mm / 0.24 inch Thread Length: 26.5mm / 1.04 inch Total Length: 79.6mm / 3.13 inch Package Contents: 2 x Metric Machine Taps