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Yanggu Yihui Drilling Tools Co.,Ltd.

ADDRESS:No.216 Zhengyang Road, Qingdao, Shandong,China.



Hollow Bit Material
Nov 07, 2018

Hollow drill material can be divided into carbide steel, high-speed steel, powder metallurgy, tungsten steel drills, the most commonly used in the market is cemented carbide, and high-speed steel for the common type, cemented carbide hollow drill has the advantages of wear-resisting and durable, hard to break down when hitting hard materials, and high-speed steel is very sharp, drilling faster. But it is crisp, and it is easy to break when hard material is used.

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