Patent ID: 7441481

Claim:
A socket wrench having multiple driving heads, comprising: a handle which has an upper shell and a lower shell corresponding to each other and triangular portions each having a protrusive driving portion, two neighboring driving portions being connected by a side wall formed in an arched shape concaved inwards; three driving bars, each of which is located in a corresponding one of three driving portions and has a coupling head on an outer side and a ratchet on an inner side, each coupling head being located outside the corresponding driving portion; a clamping box which is located in the center of the handle and has three pairs of detent plates pivotally coupled thereon, each pair of the detent plates holding the ratchet in a middle portion thereof, two neighboring detent plates clamping an elastic member, each detent plate having a brake tooth engageable with the ratchet; and a round rotary knob which is located on the top of the handle and has an actuation bar located thereunder, the actuation bar having three radial jutting wings to turn the detent plates.