The utility model discloses a making devices about acting as go -between, relate to act as go -between about the producing implement field, to prior art bulky, hard, must could operate the technical problem who is unfavorable for field work on smooth ground, the adoption includes bottom plate, pivot, turn line mechanism and fixed handle, bottom plate one side is provided with ratchet, ratchet passes through the pivot is connected with the curved line mechanism that sets up at the bottom plate opposite side, the bottom plate is provided with fixed handle, pivot one end is provided with the technical scheme of spanner, the utility model discloses a structure of original instrument has been optimized to the principle of ratchet auto -lock, has reduced the volume, has saved the manpower, portable and management, and more importantly does not need any support thing to do the strong point, can carry out the bending aloft with having held, has avoided appearing the phenomenon that the slippage was hurted sb. 's feelings at crooked steel strand wires in -process too greatly because of elasticity.