Ratchet wrench

A ratchet wrench, comprising:

• a wrench handle having a receiving portion at an end thereof, in which provides a chamber at a side thereof and a slot in said chamber;
• a pawl installed in said chamber of said wrench handle having a teeth portion at a side thereof;
• a spring installed in said chamber of said wrench handle having an end thereof rested against said pawl and the other end thereof rested in said slot in said chamber;
• a driving member rotatably received in said receiving portion of said wrench handle and having an annular teeth portion at the outer surface thereof to mesh with said teeth portion of said pawl and two engaging portions at opposite sides of said teeth portion respectively, and
• two covering members, each of which has a tube, an opening at central of said tube and an annular flange at an end of said tube, each said flange having a diameter large than the diameter of the receiving portion of the wrench handle;
• said tubes of the covering members being respectively inserted into the spaces formed respectively between said receiving portion of said wrench handle and said engaging portions of said driving member with the openings of the tubes of the covering members firmly sleeved onto said engaging portions of the driving member respectively.