Precision MF Male Female Threads ensure quick vibration resistant coupling for long hole drilling maximizing impact energy transfer and minimizing thread wear
High Strength 55SiMnMo or 23CrNi3Mo Alloy Steel with full carburizing achieves surface hardness 58 62 HRC and tough core 35 40 HRC
Optimized for Deep Hole Drilling with straightness tolerance of 1mm per meter reducing hole deviation and ensuring accurate blast hole placement
Hollow Center Design provides efficient air or water flushing continuously removing cuttings and preventing bit balling for sustained penetration rates
Available in R32 R38 T38 T45 T51 Threads with customizable lengths from 800mm to 6400mm for versatile long hole drilling equipment applications
Post time: Jul-18-2026