Duhyun Engineering, established in August 1981, is a tool manufacturing company specializing in the production of diamond core drills. At Duhyun Engineering, we utilize our accumulated know-how and technical expertise to create products that meet the needs of your job site. We are committed to continuous research and dedication to producing even better products. We recognize that the 21st century is an era where consumers' preferences matter. With the motto that the success of our customers is our success, we devote ourselves to enhancing product quality and providing excellent after-sales service. We strive to meet the ever-evolving demands of the business landscape in this new century. We wish for boundless growth and prosperity in your business endeavors.