Hard and Soft Rock Drilling Bits CIR90-110mm for Coal Mining, Well and Quarry Drilling

Hard and Soft Rock Drilling Bits CIR90-110mm for Coal Mining, Well and Quarry Drilling. Customizable Drilling Diameter: Supports customization from 76mm to 1000mm across low and high pressure series. Multiple End Face Designs: Offers convex, flat, concave, and deep concave center types for various rock conditions. OEM and ODM Services: Accepts custom drawings, samples, and requirements for full or minor customization. ISO 9001:2015 Certified: Manufacturing process and quality control meet international ISO standards. Versatile Application Scope: Suitable for coal mining, well drilling, quarrying, and geological disaster warning. High Hardness Alloy Steel: Material hardness ranges from HRC48 to HRC50 for durability in hard rock. Fast Stock Delivery: Production takes 15-30 days, or only 2-3 days if stock is available for requested size. 24/7 Technical Support: Engineers available to solve problems with technology support and replacement services.