1、Cobalt‑containing 5% cutting edge has high strength, and cobalt‑containing high‑speed steel can significantly improve the wear resistance and cutting performance of the steel 2、Wide application range, high cost performance and practicality, can process stainless steel and other difficult‑to‑process metals 3、Pat the debris into a spiral shape to discharge the chips upward, which is more suitable for processing into blind holes and viscous material processing 4、Using high‑quality materials, wear resistance and durable, has a long service life 5、Small size, easy to carry and store, convenient to use and with good performance 1 x M4 1 x M5 1 x M6 1 x M8 1 x M10  Item Type: Machine TapMaterial: High speed steelColor: Gold and SilverSize: M4: Cutter Head Diameter: Approx. 4mm / 0.16in, Blade Length: Approx.18mm / 0.7inHandle Diameter: Approx.3mm / 0.1in, Total Length: Approx.57mm / 2.2inM5: Cutter Head Diameter: Approx.5mm / 0.2in, Blade Length: Approx.20mm / 0.8inHandle Diameter: Approx.5mm / 0.2in, Total Length: Approx.63mm / 2.5inM6: Cutter Head Diameter: Approx.6mm / 0.24in, Blade Length: Approx.22mm / 0.9inHandle Diameter: Approx.5mm / 0.2in, Total Length: Approx.69mm / 2.7inM8: Cutter Head Diameter: Approx.8mm / 0.3in, Blade Length: Approx.24mm / 0.9inHandle Diameter: Approx.5mm / 0.2in, Total Length: Approx.72mm / 2.8inM10: Cutter Head Diameter: Approx.10mm / 0.4in, Blade Length: Approx.37mm / 1.5inHandle Diameter: Approx.6mm / 0.24in, Total Length: Approx.77mm / 3inApplicable: Suitable for processing stainless steel, steel plate, copper, SK601, MK80 alloy steel, die steel, iron alloy and other metalsList: 1 x M41 x M51 x M61 x M81 x M10