TWO-PIN WRENCH Russian patent published in 2019 - IPC B25B13/08 B25B13/56 

FIELD: instrument engineering.

SUBSTANCE: invention relates to a two-pin wrench for tightening and unscrewing nuts in places with limited access, reduced in height placed in the lowering of the support surfaces with a reduced diametral size. Wrench contains an elongated handle with working heads adjoining at the ends with an open mouth, U-shaped in plan, of various widths, the middle of the pharynx arc is at the intersection of the axes of the handle and the pharynx. From the front side on the surface of the working heads protrusions are made in the form of segments in the plan, placed the way the flat surfaces thereof are a continuation of the rectilinear surfaces of the pharynx. Length of the flat surfaces of the segments of the working heads is less than the length of the rectilinear surfaces of the sheds, and the thickness of the working heads with segments is made different and less than the thickness of the central part of the handle.

EFFECT: technical result consists in producing two-pin wrench for operative screwing and unscrewing of nuts, reduced in height, placed in the lowering of the supporting surfaces with a reduced diametral size.

1 cl, 4 dwg