Tungsten steel punch needle, also called tungsten steel pin, etc., is an important part of the mold. It is a part used to mold the inner surface of a product in a mold. It is a replaceable mold consumable. As a part of mold, its wear resistance and fracture resistance are extremely important for its using life. Generally, the mold requires a punch needle have high hardness and high toughness so that it resists to wear and fracture. And there is no doubt that the quality of punch needle is a major concern for buyers. So, how to choose high-quality tungsten steel punch needle?
More details, please visit:
http://tungsten.com.cn/tungsten-needles.html
Selection of Tungsten Steel Pin
1. Feel the weight: Take a few pins, feel the weight by hand, high-quality punch pins will be heavier.
2. Look at glossiness: High-quality pins have high glossiness without rust or spots.
3. Listen to the sound: Tap the high-quality pin, you can hear the crisp metal sound.
