The present invention is intended to provide an ultrasonic range finder to measure a distance quickly and precisely under different environments. The winding support of the stator has on its outer shell a number of axially running cooling ribs, along which an axially running first cooling flow can be directed. The increased gage pad area may be employed as a bearing area to accommodate a large resultant lateral force vector and the extended, reduced-exposure cutting element-carrying gage pads and adjacent shoulder regions may be deployed about the entire circumference of the bit so the direction of any resultant force vector is substantially immaterial to the bit design. The present invention includes the use of a clamp for stabilizing lead fingers during the wire bonding process. The heartbeat signal can include information related to stitching operations, which the master can use to determine that each stitching machine is operating properly. The microprocessor is configured to receive RFID tag information such as equipment identification information and location information, from each antenna and transmit received RFID tag information to a remote device.