generally obliquely thereto is a spring biased lever 16 which controls the flow of compressed air to an air motor 18 by opening and closing a control valve not illustrated mounted within the cylindrical housing 12 the air motor 18 is generally coaxially disposed within the cylindrical housing 12 and may be of the type generally denominated as a vane motor or any other suitable configuration in accordance with conventional pneumatic wrench practice the output of the air motor 18 is supplied through a stub shaft 20 to a speed reducing gear mechanism 22 a shaft 24 rotatably disposed within the housing 12 in suitable bearings not illustrated is connected to and drivingly mounts a first bevel gear 26 the first bevel gear 26 rotates about an axis generally parallel to or coincident with the axis of the cylindrical housing 12 is in constant mesh with and in turn transfers power to a second bevel gear 28 disposed for rotation about an axis generally perpendicular to that of the first bevel gear 26 the second bevel gear 28 is secured to a stub shaft 30 which terminates in an appropriate power transmitting fitting such as a square male shank 32.