Raise Bore Stems

Raise bore stems form the critical connection between the drill string and the reaming head, transferring torque and thrust during the raise boring process. Manufactured from high-strength alloy steel, these stems are engineered to endure extreme stresses and harsh underground conditions while maintaining precise alignment.

Our stems are designed for maximum reliability and safety, ensuring smooth power transmission and reducing wear on surrounding components. With robust threading and superior machining tolerances, they provide a secure fit and long service life, making them a dependable choice for raise boring operations across the mining industry.