1、Durable and Corrosion Resistant: Made of good quality Ti plated high speed steel, durable and corrosion resistant, possess high hardness 2、9 Sizes From M2-M12: There are 9 different sizes of taps from M2 to M12, you can use to tap various threads 3、Spiral Flute Help to Remove Debris: The tap adopts a spiral flute design, which is beneficial to remove debris and not easy to break 4、Excellent Thread Tool: Spiral flute tap is an excellent tool for creating threads, cutting or forming matched female threaded parts 5、Long Service Life: Drill tap bits have stable structure, excellent performance and long service life 9 x Spiral Flute Tap Item Type: Spiral Flute Tap SetMaterial: Ti plated high speed steelPurpose: Used to create threads, cut or form matching female threadsSpecification: Model Work length(approx.) Rod diameter(approx.) Total length(approx.) Recommended drilling(approx.) Tail   M2x 0.4  11mm / 0.4in 3mm / 0.12in  43mm / 1.7in   1.6mm / 0.06in Cone  M 2.5x 0.45   13.4mm / 0.5in 3mm / 0.12in  47mm / 1.9in   2.0mm / 0.08in Cone  M3x 0.5   13.5mm / 0.5in 4mm / 0.16in  50mm / 2in   2.5mm / 0.1in Cone  M4x 0.7  17mm / 0.7in 5mm / 0.2in  57mm / 2.2in   3.3mm / 0.13in Cone  M5x 0.8   19.5mm / 0.8in 5mm / 0.2in  63mm / 2.5in   4.2mm / 0.17in Cone  M6x 1.0   21.8mm / 0.9in  6mm / 0.24in  67mm / 2.6in  5mm / 0.2in Cone  M8x 1.25 23.75mm / 0.9in   6.5mm / 0.26in  71mm / 2.8in   6.8mm / 0.27in Flat  M10x 1.5 28mm / 1.1in  8mm / 0.31in  80mm / 3.1in   8.5mm / 0.33in Flat  M12x 1.75 30.2mm / 1.2in 9mm / 0.35in  89mm / 3.5in   10.3mm / 0.41in Flat