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Manufactured from high quality steel tubing, these double ended box wrenches have a different socket size on each end. Thin and long body allows these to be used to loosen or tighten nuts and bolts in narrow, recessed areas. Box wrenches are used with tommy bars which is passed through the holes provided in the sides of the wrench. Supplied complete with tommy bars
They come in Metric:
Size is measured as the width of the nut across hexagon flats.