Abstract: A hand-held power tool for driving bits. The tool includes a forward housing having a port extending through a lower surface to a hollow interior. The tool includes a motor having an output shaft rotating about a rotor axis in response to air passing through the motor. The tool has a carrier member mounted in the hollow interior of the forward housing for rotation about a turning axis extending generally transverse to the rotor axis. The carrier member has a bottom surface and a bit receiver opening aligned with the forward housing port. The bottom surface of the carrier member is flush with the lower surface of the forward housing. The tool includes a pinned linkage connecting the output shaft of the motor to the carrier member to rotate the carrier member about the turning axis as the output shaft of the motor rotates about the rotor axis.

Abstract: An animal activity monitor and behavior processor for collecting data from an animal being tested in an observation area. The apparatus is adapted to separate animal activity data into two groups by differentiating ambulatory or relocation movements from non-ambulatory movements such as grooming, scratching or body rotation.