A tool has a body with an axially extending cavity containing partly cylindrical receptacles. Each receptacle has an opening facing inward toward the axis. A partly cylindrical cam portion of a jaw fits within each of the receptacles. Each jaw has a workpiece engaging portion protruding from the body. Each of the cam portions has a pair of flat flanks that protrude inward from the opening of one of the receptacles. The flat flanks intersect each other at an inner corner. Each flank abuts one of the flanks of another of the cam members. Each of the engaging portions has an outer surface configured to engage a hole within the workpiece. An increment of rotation of the body relative to the jaws causes the inner corners of the flanks to move outward from the axis and the outer surfaces of the engaging portions to move from a contracted position to an expanded position.

A driver tool for insertion and removal of a first part configured for threaded engagement in a corresponding threaded bore in a second part has a driving end portion of polygonal shape with multiple flats configured for engagement in a recess in the first part having a corresponding polygonal shape. Some or all of the flats have a respective grabbing feature or edge designed to grab or grip into the opposing surface of the recess to allow a greater amount of torque to be applied to the first part when the tool is rotated in the unthreading direction than when it is rotated in the opposite threading or insertion direction.

A screw bit body allows for efficient torque force application onto a socket fastener. The screw bit body includes a plurality of laterally-bracing sidewalls, a first base, and a second base. The laterally-bracing sidewalls are radially distributed about a rotation axis of the screw bit body with each further including a first lateral edge, a second lateral edge, a bracing surface, and an engagement cavity. The engagement cavity creates an additional gripping point to prevent slippage in between the screw bit body and the socket fastener. The engagement cavity traverses normal and into the bracing surface. Additionally, the engagement cavity traverses into the screw bit body from the first base to the second base. The engagement cavity is specifically positioned offset from the first lateral edge by a first distance.

A fastener extractor tool is an apparatus that is used to remove a seized or damaged fastener. The apparatus may include at least one shank body and at least one torque-tool body. The at least one shank body allows the apparatus to be attached to an external torque tool. The torque-tool body engages the seized fastener to apply torque to dislodge said seized fastener. The at least one torque-tool body may include a plurality of laterally-bracing sidewalls and at least one engagement feature. The plurality of laterally-bracing sidewalls engage with the seized fastener to efficiently transfer torque from the external torque tool to the seized fastener. The at least one engagement feature is an engagement cavity that forms at least one engagement tooth on the at least one torque-tool body. The at least one engagement tooth engages the seized fastener to ensure torque is transferred to the seized fastener.

Methods and apparatus for a fastener head having a dual zone socket area and a mating driver bit according to aspects of the present technology include a fastener configured with driving surfaces adapted to provide enhanced engagement between each other during use. The fastener includes a recessed socket area with a sidewall that has an upper inwardly tapering section and a lower vertical section that extends to the bottom of the recessed socket area. The upper inwardly tapering section of the sidewall may also include an offset relative to the lower vertical section to create asymmetrical driving and removal surfaces. The technology also includes a corresponding mating driver bit configured with mating surfaces to the fastener to provide enhanced engagement between the fastener and mating driver bit. The technology also allows either the fastener or the driving bit to be used with preexisting fasteners and driver bits.

A hex headed bit and socket for enhanced non-slip application of torque force having a hex head with contoured fastener engagement surface channels in the respective alternating flat tool engagement sides and tapered step end engagement surfaces with fastener engagement edges. The contoured channels are tapered both transversely and longitudinally and extend in angular inclination across hex head bit flat side. Alternate alternating recess areas in a hexagonal insertion bit defining pairs of spaced parallel vertical engagement edges. The defined primary channel lateral edges and correspondingly end engagement surface engagement edges and vertical engagement edges embed themselves during rotational engagement within the so engaged fastener pulling the hex head bit into the engaged fastener imparting enhanced translateral points of tool engagement.

A universal tool which can be a screwdriver, wrench, pliers, or any other tool. The tool can operate on an object (e.g., a screw, bolt, etc.) of any shape because of a set of pins that can mold to match a shape of the object. For example, a same universal screwdriver has pegs which mold themselves to match a shape of a slotted screw head or mold themselves to match a shape of a philips screw head. A user of the universal screwdriver can then turn such screw by turning the universal screwdriver in a standard fashion. When the universal screwdriver is removed from the object, then the pegs automatically revert themselves to a default position so a different shaped screw head can then be operated on.

A screwdriver capable of driving screws with any shape of head comprises a fixing member and a main body. The main body comprises a first end and a second end, the fixing member fixes on the first end of the main body. The screwdriver further comprises a number of hard and small-diameter cores and a button. The cores are contained in the main body and are partially exposed out of the main body, the button is configured on the second end of the main body and resists against one end of the number of cores. The button drives a part of the number of cores to form a head to match a screw.

An adapter and interface permits a standard mortise lock to drive top and bottom latch mechanisms of a multi-point lock system. An actuator permits in situ adjustment of the top and bottom vertical latch projections of adjusting these projections while the door is hung in the door frame. An installation tool assists in the installation of the vertical rods in a door. A connector and carrier secures the vertical rods to the actuator and permits verification of retention of the rods in a multi-point latching system. A latch dogging indicator allows for end-user adjustment between a single-point lock and a multi-point lock system when desired. These different aspects may be employed in combination or separately with other locking systems.

The present disclosure provides a tool kit including: a first holding member, a second holding member, a tool assembly, and an unlocking assembly. The second holding member is disposed in parallel with the first holding member, and a support cylinder member is connected therebetween to form an accommodation space. The tool assembly includes at least one tool member rotatably accommodated in the accommodation space. An end of the tool member is provided with a rotational connection part, and the rotational connection part is rotatably sleeved on the support cylinder member through a sleeve hole defined in the rotational connection part. The inner wall of the sleeve hole is concavely defined with an engagement groove. The unlocking assembly is movably mounted in a mounting hole of the support cylinder member. The unlocking assembly has a locked state and an unlocked state.