Feature:1. Suitable for stainless steel, iron, cast iron, alloy steel, carbon steel, abrasive steel materials2. Iron and other difficult-to-machine metal materials are malleable with this tap3. This high quality HSS thread tap can cut very well, and come with fast cutting speed4. The thread tap is made of high-speed steel materials, which brings high hardness5. 1/4‑18 tap provide high working efficiency, which saving both time and effortSpecification:Item Type: TapStandard: American SystemNumber of Threads Per Inch: 18 TeethPitch: 1.41Thread Tolerance Grade: H2Material: High speed steelThread Specification: 1/4 inchTap Length: Approx. 6cm / 2.4inUseful Length of Tap: Approx. 2cm / 0.8inShank Diameter: Approx. 1cm / 0.4in Package List:1 x Tap