CIR DTH Drill BitsBrighttop Global Co., Ltd. supplies durable CIR DTH drill bits designed for compatible CIR-series low-pressure down-the-hole hammers. These bits are widely used for quarrying, mining, water-well drilling, construction and general rock excavation projects.Manufactured from selected alloy steel and fitted with wear-resistant cemented carbide buttons, our CIR DTH hammer bits are designed to provide reliable impact transmission, stable penetration and consistent