A bidirectional extraction socket may include a driven end configured to receive drive power from a driving tool, a drive end configured to interface with a fastener, and a body portion extending between the driven end and the drive end about an axis of the extraction socket. The drive end includes a fastener engagement recess extending into the body portion and coaxial with the body portion. The fastener engagement recess is configured to engage with the fastener such that the fastener is drivable in either a clockwise or a counterclockwise direction while avoiding contact with corner portions of the fastener.

A bidirectional extraction socket may include a driven end configured to receive drive power from a driving tool, a drive end configured to interface with a fastener, and a body portion extending between the driven end and the drive end about an axis of the extraction socket. The drive end includes a fastener engagement recess extending into the body portion and coaxial with the body portion. The fastener engagement recess is configured to engage with the fastener such that the fastener is drivable in either a clockwise or a counterclockwise direction while avoiding contact with corner portions of the fastener.

A dismantling device, comprising a base, a bearing mechanism, a moving mechanism and a pulling-out assembly, the bearing mechanism supports a product to be dismantled; the pulling-out assembly comprises a connecting mechanism, a drive mechanism, a catching member and a sliding block; the connecting mechanism comprises an outer framework and an inner framework sliding relative to the outer framework; the outer framework is connected to the moving mechanism and presses against the product; the drive mechanism is connected to the inner framework and the sliding block; the catching member is slidably arranged in the inner framework; the sliding block slides with the catching member; and the drive mechanism drives the catching member to clamps the part and the inner framework dismantles the part from the product.

A bolt extractor structure includes: a main body, including a base plate, first wall, and second wall, both sides of the base plate vertically combined with the first wall and second wall, the first wall and second wall respectively provided with an opposite first shaft hole, each of the shaft holes provided with a first shaft, the first wall and second wall respectively having a first recess and second recess, and the first recess provided with an abutting element; and a hook body, one end thereof having a through hole, the first shaft passed through the through hole, another end of the hook body having a hooking portion.

A foreign object removing socket adaptor includes a pusher, an adaptor, an external thread, an internal tread, and a stop. The pusher includes a drive head and a main shaft. The adaptor includes a tool body, a socket attachment body, and a main channel. The drive head and the main shaft are adjacently connected to each other. The external thread is laterally connected around the main shaft. The stop is radially connected around the main shaft, opposite of the drive head. The tool body and the socket attachment body are adjacently connected to each other. The main channel concentrically traverses through the tool body and the socket attachment body. The internal thread is laterally connected within the main channel. The main shaft is threadedly engaged with the main channel through the external thread and the internal thread.

Methods and apparatus to remove frangible fastener remnants are disclosed. A disclosed example apparatus to install a frangible fastener includes a drive tool having a drive socket operable to rotate a separable nut portion of the frangible fastener, and a fastener interface defining an interior for receiving at least the nut portion, the fastener interface being disposed on a drive end of the drive tool, where the drive socket is movable within the fastener interface and operable to rotate the frangible fastener, and where the separable nut portion of the frangible fastener is removed when the frangible fastener is installed. The apparatus also includes a nut-portion removal tube depending from the interior of the fastener interface, and a vacuum generator in fluid communication with the removal tube and configured to cause the separable nut portion to be removed from the interior and through the removal tube.

A method of using a fastener torque-tool body, torque arm, and release bolt to engage a stripped threaded fastener in an object. The method comprising the steps of selecting a torque-tool body suitable for the fastener being removed, engaging the torque-tool body with the fastener, engaging the torque arm with the torque-tool body, applying rotational force to the torque arm to rotate the fastener within the object, engaging the release bolt with the torque-tool body, and applying rotational force to the release bolt to dislodge the fastener from the torque-tool body.

A method of using a fastener torque-tool body, torque arm, and release bolt to engage a stripped threaded fastener in an object. The method comprising the steps of selecting a torque-tool body suitable for the fastener being removed, engaging the torque-tool body with the fastener, engaging the torque arm with the torque-tool body, applying rotational force to the torque arm to rotate the fastener within the object, engaging the release bolt with the torque-tool body, and applying rotational force to the release bolt to dislodge the fastener from the torque-tool body.

An aspect of some embodiments of the present invention relates to solutions for the removal of dental implant screws with stripped heads and/or dental implant screws that are difficult to remove. Optionally, the method for removing a dental implant screw comprises a method for removing the head from the shaft of a dental implant screw, for example by drilling. Once the head is removed, the abutment is optionally removed, thereby exposing the threaded screw shaft within the fixture of the implant and/or the mount for aligning the abutment. Optionally, removal of the abutment allows use the attachment to guide removal of a screw shaft.