Secoroc Rock Drilling Tools SECOROC MAGNUM SR
2017-11-30 · Magnum SR28 thread system 28 mm (11∕ 8') diameter thread 25 mm (1') diameter thread Magnum SR28 drill string 33 % more material means a substantial increase in metal fatigue resistance More material between skirt and bit head Conical shaped rope thread facilitates rapid coupling and uncoupling Dome reaming bit
Get Price