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The 8 HSS hand tap is made from high-speed steel with high hardness and excellent resistance to wear and heat. Its length typically ranges from 50 to 80 millimeters, and its nominal diameter is defined according to size number 8 in various standard systems. The square shank allows for easy and secure fitting into a tap wrench. Precise flutes and thread geometry provide uniform cutting and reduce the required force during threading. The surface hardness usually ranges between 60 and 65 HRC, ensuring tool durability.
This hand tap is suitable for creating high-precision internal threads in both soft and hard metals. The recommended manual operating speed is between 10 to 18 revolutions per minute to prevent overheating and damage. The pilot drill size is typically about 85 to 90 percent of the tap diameter. The 8 HSS tap is widely used in machining, industrial repair, and precision equipment manufacturing, delivering excellent thread quality.
WEBSITE: HAND TAPS 8 HSS Iran