Abstract: A positive-feed drill motor assembly includes a positive-feed motor, a gearbox, and a drill-bit. The positive-feed motor includes the spindle which rotates around a spindle axis and simultaneously translates in a direction parallel to the spindle axis. The gearbox includes a plurality of gears rotated by the spindle. The plurality of gears is configured to engage and rotate a drill-bit around a drill-bit axis which is offset from the spindle axis. The gearbox and a drill-bit attached thereto are configured to simultaneously translate with the spindle in the direction parallel to the spindle axis as the spindle rotates around the spindle axis.

Abstract: An adjustable depth control device for a fastener driving tool has an attachment member which is used to couple the adjustable depth control device to the fastener driving tool. An adjustment member is coupled to the attachment member to adjust and control a driving depth of the fastener driving tool. A stopping head is formed on a rivet die of the fastener driving tool for keeping the rivet die in a chamber of the fastener driving tool and for limiting a distance the rivet die will travel.

Abstract: An installation tool for installing a support hanger in an aircraft, where the support hanger includes a main hook body and a complimentary hook body slidably coupled with the main hook body. The support hanger further includes a locking mechanism for selectively locking the main hook body and the complimentary hook body. The installation tool comprises a handle having a pivot surface that engages the main hook body of the support hanger. A wedge-shaped slot is formed in the handle and includes a pair of surfaces. An interfering member is then disposed within the wedge-shaped slot. This interfering member is positionable in a first position where the interfering member engages at least one of the pair of surfaces and a free end of the complimentary hook body and a second position where the interfering member is disengaged from the pair of surfaces so as to permit simple and convenient tightening of the support hanger.