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About product and suppliers:
        Alibaba.com offers 4,282 copper bit products. About 28% of these are drill bit, 15% are milling cutter, and 2% are mining machinery parts. 

A wide variety of copper bit options are available to you, such as twist drill bit, screwdriver set, and core drill bit. You can also choose from diamond, high speed steel, and tungsten carbide. As well as from metal drilling, well drilling, and masonry drilling. And whether copper bit is free samples, or paid samples. 

There are 4,282 copper bit suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of copper bit respectively. 

Copper bit products are most popular in Domestic Market, North America, and Southeast Asia. 

You can ensure product safety by selecting from certified suppliers, including 2,155 with ISO9001, 352 with Other, and 120 with BSCI certification.