Patent ID: 7165479

Claim:
A selective one-way wrench comprising a handle ( 10 ), a head ( 11 ) formed at an end of the handle ( 10 ), a selective one-way mechanism installed at the head ( 11 ), and a retaining device ( 20 ) for retaining a socket ( 30 ) on the head ( 11 ), the retaining device ( 20 ) comprising: a cover ( 21 ) installed on the head ( 11 ), the cover ( 21 ) comprising an opening ( 22 ) through which the socket ( 30 ) can be inserted, a stop ( 23 ) on a side, and two parallel grooves ( 24 ) between two lateral walls thereof and two lateral walls of the stop ( 23 ); and a shackle ( 26 ) put between the cover ( 21 ) and the head ( 11 ) movably, the shackle ( 26 ) comprising an opening ( 260 ) larger than the socket ( 30 ), two slides ( 261 ) for sliding in the grooves ( 24 ), and a retaining portion ( 262 ) for entering a groove ( 35 ) in the periphery of the socket ( 30 ) when the shackle ( 26 ) is moved backwards so that the selective one-way wrench can be operated easily and smoothly.