... spider TYPE C,CHD,E,G. We made those inserts for CANVINS tubing spider or air slips to holdon ... “B”, “C”, “C-HD”, “E”, and “G”Hardness: 58-62.While running in or pulling out tubular at oil rigs ... Dies are the principal element in the manual tongs or power tongs which carry out the job of ... gripping the tool joints, before torque application. (Rollers or chain are also used for gripping of tubular while ...