Xiamen Good Mining And Drilling Equipment Co., Ltd. is based in China and lists products such as R28 Drill Bit For Drifting and R28 Tungsten Carbide Thread Button Bit. These products transmit intensive impact energy into rock with minimal loss, resulting in good rock breakage, high penetration rates, and high productivity. The R28 Drill Bit For Drifting and R28 Tungsten Carbide Thread Button Bit are suitable for drifting and tunneling, with thread type R28, head diameters from 33mm to 76mm, and various face and skirt designs. Buyers can send an enquiry through Global Trade Plaza.