Abstract: A socket wrench has a rigid extension provided for attachment to the handle portion. The extension has at a first end thereof a receiving portion for matingly receiving a spline-drive shank of the wrench handle through a rear face of the extension, and has a spline-drive shank extending perpendicularly from a forward face of the extension at a second, opposite end thereof. A low clearance is maintained such that the forward face of the second end of the extension resides in a plane substantially parallel to or rearward of the forward face of the head. The socket wrench may further include a ratchet head attachment having its lower end recessed at its rear face for receiving the second end of the extension therein.

Abstract: An encoder mounting device is used for mounting an encoder to the shaft of an apparatus so that the encoder can sense and monitor the rotation of the shaft. The device includes a collar and a plastic ring arranged and designed to prevent metal contact between the encoder and the apparatus. In this manner the mounting device prevents electrical and thermal conduction therebetween.