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About product and suppliers:
            8,315 cobalt drill bits products are offered for sale by suppliers on Alibaba.com, of which drill bit accounts for 73%, mining machinery parts accounts for 3%, and construction machinery parts accounts for 1%. 

A wide variety of cobalt drill bits options are available to you, 

There are 8,296 suppliers who sells cobalt drill bits on Alibaba.com, mainly located in Asia. The top countries of suppliers are India, China, and Japan, from which the percentage of cobalt drill bits supply is 1%, 97%, and 1% respectively.