1/4" and 3/8" extension wrench developed for tighten and loosen the bolts and nuts which are at hard to reach areas. When using put one end on suitable socket wrench, the other end connects to a extension wrench.With the ZERO degrees angle of motion by turning the bolt and nut allows you to move freely. At hard to reach areas the operations of tightening and mounting the bolt /nut be easier.
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