Raise Boring Roller Cutters | Durable Tungsten Carbide Bits

Yijue has large scale drill bit R&D and manufacturing facilities in China using world class, leading technologies. The company has adopted a flexible production system with the incorporation of CNC machining centres,being its core component.The production line consists of manufacturing equipment such as forging,heat-treatment, CNC machining centres, along with advanced inspection equipment. We have extensive experience with heat treatment technology and advance air-cooled bearing design yields longer life, result in lower overall drilling costs. Our products are designed and manufactured to our ISO 9001 standards.The tri-cone drill bits range from 6 1/4'' to 13 3/4'' in size, and the production line is capable of customized design to manufacture for different sizes and series of drill bits to meet our customer's requirements.