Sunrise can provide you with these specifications for two wings auger coal drill bit :

For other specification, we can customize upon request.

We welcome any custom design enquiry.  We can also customize products for you upon requests.  

Our professional engineers are available to review your drawing/sample and to discuss your needs for replacement wear parts applied on different hardness of rock.

Sunrise (Ningbo) Precision Metal Parts Inc., a Taiwan based company invested in China, specializes in manufacturing a wide selection of custom quality replacement wear parts for drilling, trenching, mining, road milling, tunnel cutting, recycling and misc. wear-resist fields.

Our main products cover various picks and blocks, including foundation drilling bits and blocks, HDD drilling bits, replaceable quick change blocks and welding bars for casing/coring barrels, trenching bits and blocks, water well drilling tools, fencing and handheld tools, surface and underground mining picks and blocks, road milling and stabilization bits and blocks, tunnel wear tools, recycling wear tools, steel forgings & castings and misc. wear tools.