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About product and suppliers:
        Alibaba.com offers 5,116 t.c bit products. About 18% of these are drill bit, 7% are mining machinery parts, and 1% are screwdriver. 

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

There are 5,116 t.c bit suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of t.c bit respectively. 

T.c bit products are most popular in North America, Domestic Market, and Eastern Europe. 

You can ensure product safety by selecting from certified suppliers, including 1,885 with ISO9001, 960 with ISO14001, and 450 with Other certification.