Insulation lead stripping instrument

The utility model discloses an insulation lead stripping instrument, comprising a first handle and a second handle which are both Z-shaped. The centers of the first handle and the center of the second handle are in movable connection through a connecting screw. An operation end of the first handle is provided with a ring cutter blade axially vertical to the connecting screw. A right-angle guide plate A is arranged perpendicular to the blade direction of the ring cutter blade and on an operation end of the second handle. The right-angle guide plate A is corresponding to the ring cutter blade. A length cutting blade in parallel with the axial direction of the connecting screw is arranged on a clamping terminal of the second handle. A right-angle guide plate B is arranged perpendicular to the blade direction of the length cutter blade and on the clamping terminal of the first handle. The right-angle guide plate B is corresponding to the length cutting blade. A caliper is arranged between the tail ends of the cla