Abstract: An open end ratchet wrench is defined with a gap which allows the ratchet wrench to pass through a pipe or obstacle to carry out rotation, thus improving the operability and convenience of the wrench. Both ends of the open end ratchet wrench extend outward to form a stopping piece, respectively. The stopping pieces allow the toothed pawl to be well positioned and prevent it from disengaging, thus maintaining a stable torque and making the ratchet wrench easy to use.

Abstract: A control structure for a two-way ratchet tool comprises a handle, an adjustment member, a ratchet member and a control member. The handle includes a shank portion, a drive portion and a ratchet portion including a positioning groove, a sliding surface and a protruding stop ring. The sliding surface includes an arc groove for accommodation of an elastic member, and the positioning groove includes an adjustment recess for accommodation of a push member and a spring. The adjustment member includes plural teeth on an upper end thereof and an adjustment rod at one side thereof. The ratchet member includes a smooth surface and a toothed surface on an outer periphery thereof and a wavy engaging surface on an inner periphery thereof. The control member includes a ring body with a wavy outer surface and a control end, the ring body includes a locking groove for accommodation of a C-shaped clip, and a limiting recess.