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About product and suppliers:
        Alibaba.com offers 1,335 bit drill extension products. About 40% of these are drill bit, 21% are mining machinery parts, and 5% are screwdriver. 

A wide variety of bit drill extension options are available to you, such as magnetic screwdriver, screwdriver set, and mini screwdriver. You can also choose from hex, slotted, and phillips. As well as from free samples, paid samples. 

There are 1,335 bit drill extension suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of bit drill extension respectively. 

Bit drill extension products are most popular in Domestic Market, Eastern Europe, and North America. 

You can ensure product safety by selecting from certified suppliers, including 462 with ISO9001, 117 with Other, and 35 with ISO14001 certification.