Maximize your heavy production drilling with the HD715 T51 D58 790 shank adapter. Specifically engineered for HD715 series hydraulic rock drills, this 790mm extra-long striking bar features a high-torque T51 thread and a massive 58mm diameter. Fully carburized for ultimate shearing resistance and optimal linear energy wave transmission in high-power hard rock mining.
Key Performance Advantages
Massive D58 Cross-Section: The 58mm diameter delivers maximum structural rigidity, completely eliminating shank flexing and deflection under extreme feed pressures and heavy hammer blows.
Ultra-Torque T51 Threading: Engineered for large-diameter deep-hole drill strings, the T51 thread maximizes rotational force transmission and prevents thread "cold welding" or stripping.
Premium Fatigue Life: Full-body carburization and shot peening introduce high compressive stress, creating an ultra-hard exterior shell to withstand front-head bushing friction while preserving a highly ductile core.
Primary Applications
Underground Production Mining: Large-scale long-hole stoping, fan drilling, and mass cave mining.
Heavy Tunnelling: Complex umbrella arch systems, forepoling support, and rapid development in large cross-section tunnels.
Quarrying & Bench Drilling: High-penetration blasting for large-scale mining operations and civil foundation excavation.
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