A roller cone drill is a type of drilling equipment that is mostly used in large-scale open pit mines. Over the past half century, open-pit perforation equipment has experienced the development of "kowtow drills", fire drills, and impact (down-the-hole) drills. Finally, roller cone drills have become commonly used in large and medium-sized open-pit mines due to their advantages of large drilling diameter and high perforation efficiency. piercing equipment.

A roller cone drill is a type of drilling equipment that is mostly used in large-scale open pit mines. Over the past half century, open-pit perforation equipment has experienced the development of "kowtow drills", fire drills, and impact (down-the-hole) drills. Finally, roller cone drills have become commonly used in large and medium-sized open-pit mines due to their advantages of large drilling diameter and high perforation efficiency. piercing equipment