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Email: zuanlongbits@gmail.com

Tel: +86-029-82612068

Fax: +86-029-82612068

Address:No 66, Changming Road, Xi'an, Shaanxi Province, China

​Coal Mining Diamond PDC Roof Bolt Drill Bit Mainly Used In The Industries ,Water Conservancy

Our pdc roof bolt coal mine drill bit, which divided into 2 kinds----double wing and triple wing. All suitable for drilling the anchor-network support holes in the coal mine. We could supply the size from Φ25 to Φ42mm. And we also could provide the different strength roof bolting bits, like ordinary type, strengthened type, and super strengthened type.

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