Open-end ratchet wrench

作者： IV Samuel L. Armfield

DOI:

关键词: Engineering 、 Mechanical engineering 、 Mechanism (engineering) 、 Wrench 、 Nut 、 Rotation 、 Ratchet 、 Engineering drawing 、 Head (vessel)

摘要: An open-end ratchet wrench is shown which has a handle and generally C-shaped head at one end of the providing pair open-ended jaws with spaced confronting jaw faces. The are provided in form plurality rotatable toothed gears presized prealigned to engage rotate about angular side surfaces nut or bolt be received between for turning. A mechanism also selectively preventing rotation least direction.