Durable Spiral Drill Rods for Long Distance Tunneling Projects

Durable Spiral Drill Rods for Long Distance Tunneling Projects. Diverse Thread Specifications: Available in R22, R25, R28, R32, R38, T38, T45, T51, St58, and T60 threads. Multiple Color Options: Offered in Red, Black, Yellow, and White to suit various site requirements. High-Strength Material: Constructed from premium 23crni3mo D6a carbon steel for durability. Secure Thread Connection: Precisely machined male and female threads ensure firm locking under heavy loads. Versatile Drilling Applications: Ideal for hard rock, gravel, dense soil, tunneling, and geological survey. Two Product Lines: Includes extension rods for deep drilling and MF rods for medium/shallow fast drilling. Customizable Thread Types: Custom thread options available to match specific machine models and requirements. Efficient Power Transmission: Optimized design transfers impact force and rotational torque effectively.