Metric Thread Tap M4 x 0.7 H2 80mm Extra Long Screw Thread Milling Machine Taps

Product Description Information

Thread taps come in various types, including straight flute, spiral flute, spiral point, and thread forming taps. They can be further categorized as hand taps or machine taps based on their usage. Hand taps are operated using tap wrenches, whereas machine taps are recommended to be used with tap collets equipped with overload protection.

Recommended feed rates vary depending on the material being tapped. For general steel, the suggested feed rate is 6-15m/min, for harder steel it is 5-10m/min, for stainless steel it is 2-7m/min, and for cast iron it is 8-10m/min.

Extra Long Thread Taps

The straight flute tap is designed to facilitate rapid downward chip removal, making it ideal for efficient thread cutting in applications with through holes or shallow holes. It is crafted from 6542 (M2) high-speed steel, known for its high hardness, good toughness, wear resistance, and exceptional cutting performance.

Uncoated Taps

These taps feature only the base substrate without any additional coatings, making them versatile for a wide range of applications. They ensure clear threads without burrs and are suitable for right-hand tapping direction.

Machine Taps

Designed for use with tapping machines, drilling machines, milling machines, and CNC equipment, machine taps ensure precise threads without burrs. It is important to first drill holes using a twist drill bit before using a thread tap, ensuring a tapping angle of 90 degrees vertical and stable.

Wide Applications

Thread taps are essential for creating new threads or re-threading damaged threads in various materials, including metals such as iron plate, copper, zinc, alloy steel, abrasive steel, A3 steel, and stainless steel. Proper tapping oil should be used to improve the quality of internal threads and prolong the lifespan of taps, with the tapping depth not exceeding 1.5 times the tap diameter.

Tips

For optimal results, avoid using hand taps or electric drills, as they may cause tap breakage. Cutting oil should be used for lubrication, cooling, and preventing sticking during the tapping process. Speed should be adjusted according to the material hardness, with higher hardness requiring slower speeds. Uniform force application is crucial during tapping operations.

Metric Tap: - Thread size: M4 x 0.7 (right hand) - Accuracy: H2 - Total length: 80mm / 3" (extra long) - Square shank width: 3mm / 0.12" - Thread length: 20mm / 0.79" - Number of chip flutes: 3 flutes

Micro taps are specifically designed for machining holes in wood and soft metals with low hardness, commonly used in clocks and watches. Straight flute taps feature a clear threading direction without burrs, suitable for efficient thread cutting in through holes or shallow holes. Machine taps should be used with appropriate drilling and tapping equipment to ensure precise and burr-free threads.

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