Feature: 1. Enable to process die steel, iron alloy and others, screw tap can be used to process stainless steel, steel plate, copper, SK601 and MK80 alloy steel. 2. To process stainless steel and other difficult‑to‑machine metals, screw tap can be widely used, which can be durable and wear resistance with high practicality. 3. Easily carried and stored with good performance, spiral tap is manufactured by high speed steel materials. 4. Cutting edge keeps high strength depends on cobalt‑containing 5%, meanwhile, cobalt‑containing high‑speed steel can significantly improve wear resistance and cutting performance of steel. 5. By patting debris into a spiral shape to discharge chips upward, machine tap can be more fit for processing into blind holes and viscous material. Specification: Item Type: Screw tap Material: High speed steel Color: Gold and silver Size: Cutter Diameter: Approx. 20mm / 0.8in Blade Length: Approx. 39mm / 1.5in Shank Diameter: Approx. 11mm / 0.4in Total Length: Approx. 112mm / 4.4inTooth Distance: Approx. 2.75mm / 0.1in Application: Suitable for processing stainless steel, steel plate, copper, SK601, MK80 alloy steel, die steel, iron alloy and other metals . Package List: 1 x Screw Tap