Sinodrills Mf Rods/ Speed Rods

We are offering sinodrills mf rods(speed rods) mf rods are different from extension rods or drifting rods, one end is male thread, another one end is female thread. Mf rods provide more tighter connection and easy uncoupling and handling. all our mf rods are made from the same steels as sandvik and produced by cnc maching and advanced heat treatment. Rods diameters: round 32mm, round 39mm, round 46mm, round 52mm; thread size: r32, t38, t45,t51; effective lengths: 915mm ~ 6100mm