Abstract: A thread tapping tool includes a housing, an inner thread tapping device and an outer thread tapping device each having a gear wheel for changeably engaging into the housing, a lock device for detachably locking either of the gear wheels to the housing, and a switch device having a pivotal pawl for engaging with either of the gear wheels and for controlling the driving directions of the gear wheels by the housing, and for allowing the inner thread tapping device and the outer thread tapping device to selectively tap or form an inner thread in a work piece with a tapping mandrel or to selectively tap or form an outer thread in the shaft members or the other work pieces.

Abstract: An aligner and a method for its use in staking a fastener. More specifically, the aligner guides a tip of a staking tool in some portion of a staking operation properly into alignment with a clinch portion of a staked fastener. As a result, the clinch portion is shaped into a head of a generally higher quality than would otherwise occur.

Abstract: A fastener thread cleaning apparatus includes a first arm and a second arm each having a first end and a second end. The first and second arms are pivotally coupled together adjacent to the first ends to define a pair of jaws. An abutting side of each of the of the first and second arms is defined and abut each other when the pair of jaws is positioned in the closed position. Each of the of the abutting sides has a semi-circular depression therein. The depressions are alignable to define an aperture, which is threaded. The pair of jaws may be closed around a bolt to threadably engage the bolt with the aperture. The pair of jaws is positioned between a head and an end of the bolt and the bolt rotated to move the pair of jaws toward the end of the bolt.

Abstract: A tapping device is configured to be used within a drill press or lathe or other device capable of holding a cylindrical object. The tapping device has an upper projection for being axially fixed in, for example, a drill press. The remainder of the body of the tapping device is rotatable with respect to the upper projection and includes side handles for providing handy mechanical advantage to the turning of the tapping device body. The end of the body opposite the upper projection includes a chuck for holding a typical tapping tool. The projection is connected to an internal shaft which engages the body of the tapping tool and is spring biased to draw the projection and internal shaft within the body of the tapping tool. Conversely, when the tapping tool is supported in, as an example, a drill press chuck, such spring urging acts to lift the body of the tapping tool in the direction of the projection.

Abstract: The present invention is for a method of fastening a tool holder. The tool (2) has a front side (6) shaped for use in cold forming of metal wire into nails, screws, etc. The tool holder (4) has a recess (8) shaped for receiving the tool (2). When the tool (2) is fastened in the tool holder (4), compressive stresses are initially present in the tool (2). The tool (2) is subjected to tensile stresses caused by the nail making process when in the tool holder (4). In order to reduce the resulting tensile stresses, the two opposite and wedge-shaped sides (10, 12) of the tool (2) are compressed against corresponding sides (14, 16) in the recess (8) by applying and maintaining pressure on the back side (18) of the tool with fastening means (20).

Abstract: A device for cleaning-and-restoring threads of a threaded article for more easily and efficiently cleaning and restoring threads of various sized threaded article. The device for cleaning and restoring threads of a threaded article includes a pliers comprising a handle having a first arm and a second arm pivotally coupled to the first arm. The pliers also include a pair of jaws. Each of the jaws is formed on one of the second ends of each of the arms. A pair of jaw extensions is provided for gripping, cleaning and reforming the threads of a threaded article. Each of the jaw extensions is coupled to and extending away from one of the jaws. Each of the jaw extensions includes an inner surface which are in an opposed relationship to each other. A plurality of teeth is provided for engaging the threads of the threaded article. Each of the teeth is attached to the inner surface of each of the jaw extensions.

Abstract: A recessed damaged stud re-threading tool including a cylindrical housing having an open lower end, a closed upper end, and a cylindrical side wall therebetween. The open lower end exposes an internal chamber. The cylindrical side wall has a channel extending therethrough downwardly of the closed upper end. A cylindrical thread die is positionable within the internal chamber of the cylindrical housing. The thread die has an open lower end for receiving a stud therein. A first handle is positionable within the channel extending through the cylindrical side wall of the cylindrical housing. The first handle is linear. The first handle has opposed ends exposed in a diametrically opposed relationship with respect to the cylindrical housing.

Abstract: A mold for forming an auger tip on a screw is disclosed. The mold has a pair of symmetrical secondary molds each has a base mold (50), a first mold (30) detachably received in the base mold (50) and a second mold (40) detachably received in the first mold (30) detachably received in the first mold (30) and having a forming edge (41) formed thereon so as to form the auger tip on the screw by colliding two forming edges together. Therefore, when the forming edge (41) is damaged and replacement thereof is necessary, a user is able to replace only the second mold to reduce the cost.

Abstract: A piloted hand tool adaptor for connecting a conventional rotary hand tool or rotary cutting tool to the chuck of a rotary-operated machine such as a lathe or drill press in order to provide mechanical axial support and alignment of the tool to a work piece while allowing manual rotation and advancement of the tool towards the work piece. One end of the adaptor has means such as a socket to attach to the butt-end and T-bar handle of a rotary hand tool such as a common tap handle. The other end of the adaptor has a two element axial support system such as a pilot and bushing, grippable within the chuck of the rotary-operated machine, which provides axial or lateral support and alignment without affecting manual control of rotational and longitudinal motion. The adaptor may have a supplemental detachable handle bar oriented perpendicular to the T-bar handle of the hand tool.

Abstract: The disclosure is directed to a pipe cylindrical thread cutting aid that has an inner cylindrical wall, which extends throughout its length; a pair of outer cylindrical walls between which lies a shoulder which is substantially perpendicular to these outer walls, which are substantially parallel to one another, and leading and trailing surfaces. The thread cutting aid of this invention allows near perfect alignment of the thread cutter with the work piece, permits starting and finishing thread cutting using one hand and permits the thread repair and cutting in close quarters ordinarily not reachable and attainable using prior art thread cutting tools. The thread cutting aid of this invention is particularly well suited for use in the shop where the pipe can be stabilized, e.g., in a vice or equivalent device, and to thread pipe softer than stainless steel or other equivalent steel pipe work piece which are resistant to cutting which occurs during threading, e.g., stainless steel pipe.

Abstract: A die handle oiling system for use with a cutting die head comprising a tubular handle having a sealed base end, a sealed tip end adapted for holding a cutting die head thereon, an air cavity for holding air formed therein adjacent to the base end, a plunger cavity for holding oil formed therein adjacent to the tip end and in communication with the air cavity, an inlet valve extended from the air cavity for allowing air to be disposed therein, a pressure release valve extended from the air cavity for allowing air to be released therefrom, a sealable filling bore extended from the plunger cavity for allowing oil to be disposed therein, and an oil outlet extended from the plunger for allowing oil to be released therefrom; a plunger slidably disposed within the plunger cavity; an oil hose coupled to the oil outlet; and an actuatable air pump coupled to the inlet valve for filling the air cavity with air; whereby when the air pump is actuated, air pressure builds in the air cavity and forces the plunger towards t

Abstract: A die holder assembly mounts to a conventional lathe for holding a die to facilitate cutting of a thread into a workpiece. The die holder rotatably rides along an alignment shaft which mounts to the chuck of the lathe. The die holder may be manually turned by applying torque via a lever or a wrench while the alignment of the received die is constantly maintained in relation to the workpiece.

Abstract: A rethreading tool (10) for reconditioning and rethreading the threads (62) of a stud (60) is described. The tool includes a moveable jaw (26) having an extension (26A) pivotably mounted into a slot 24 of a fixed jaw (16). The extension and a first portion (16A) of the fixed jaw form a cam surface (40) which is activated by a cam nut (56) to move the moveable jaw toward the fixed jaw after positioning of the tool around the stud. Upon closing, the jaws form a complete circular opening (42) which contains a complete circular thread die (48) formed from a first thread die (22) in the fixed jaw and a second thread die (46) in the moveable jaw. In use, the tool is placed over the threads of the stud and the jaws are moved into the closed position such that the complete thread die is adjacent the threads of the stud. The tool is then rotated off of the stud.

Abstract: The device uses a diaphragm cover between the adapter and the die to lock the die into the adapter. The cover is rotatably mounted onto the adapter and has a polygonal bore that matches the polygonal bore of the adapter. The mandrel of the die has a throat in which the cover sits when the cover is in the locked position. The cover is biased with a spring into the locked position. Stops are provided to limit the movement of the cover between the open and closed positions.