... ”, “E”, and “G”Hardness: 58-62.While running in or pulling out tubular at oil rigs the joints (tool joints) are tightened ... element in the manual tongs or power tongs which carry out the job of gripping the tool joints, before torque application ... of tubular while using pipe spinners)SHINEQUIP manufactures tong dies out of best quality alloy steel. The dies are case hardened ...