uxcell Metric Taps M2 Pitch 3 Flutes H2 Thread Plug Tap HSS for Clocks and Watches DIY Thread Size: M2; Shank Diameter: 2mm Thread Length:10.3mm ; Total Length: 43.3mm Material: HSS; Package Contents: 1x Metric Taps Standard metric thread design, clear and tidy, provide rapid chip removal for efficient threading. The mini metric taps are mainly used for clocks, watches, low hardness wood and soft metal hole processing.