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Contact SupplierShriram RockTech Equipments |Â Coal Mining Drill Bit are durable and high-performance drilling tools used with down-the-hole hammers for deep drilling in mining, quarrying, water well, and construction projects. Manufactured with premium alloy steel and tungsten carbide buttons, these bits deliver excellent penetration, wear resistance, and long service life. Suitable for various rock formations, they ensure precise, efficient, and cost-effective drilling.