A cutting insert which is suitable for high cutting speed, a tool body thereof and a tool are provided. A tool according to the present invention is a tool in which a leading end thereof is provided with a force transmitting portion and for which a rotational axis extending from the leading end to a base end thereof is defined, wherein the tool comprises a cam portion which is arranged closer to the base end than the force transmitting portion and for which a dimension from the rotational axis of the tool varies in accordance with an angle at which the cam portion is rotated around the rotational axis.

A ratcheting or non-ratcheting bit driver with a bit storage or “cartridge” that fits in the hollow portion of the driver handle. The bit storage or “cartridge” enables access to bits from both ends of all bits at a perpendicular orientation to the main axis of the handle while contained within the handle. The device remains in one piece rather than separating the assembly into two pieces, a handle and a cartridge during use.

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.

An undersized indexable cutting insert being devoid of a through bore and has exactly three main cutting edges. The cutting insert has an inscribed circle which tangentially contacts only and all main cutting edges, and has an inscribed circle diameter of under 3.8 millimeters.

A hand tool for fastening a fastener, such as a screw. The hand tool comprises a handle and a rotatable fastening head connected to a first end of the handle, and engaged with a manually driven actuator. The hand tool further comprises a fixed fastening head connected to a second end of the handle, which is configured to apply a configurable fastening torque to the fastener The fixed fastening head is selectively pivotable with respect to the handle about an axis parallel to the center axis of the fixed fastening head.

The driver bit according to the present invention includes: a tip on which a cross blade is formed; a torque transmitting part having a polygonal outer circumference; and a locking groove which extends in the circumferential direction between the tip and the torque transmitting part and into which locking balls enter, wherein the tip has four blade forming grooves forming the cross blade, the blade forming grooves are continuous with the locking groove, and the blade forming grooves are arranged so that the blade forming grooves have bottom parts, at which they are connected with the locking groove, located inwardly of the outer circumference of the torque transmitting part, and the center lines are displaced from a line connecting the shaft center with vertex positions of the polygonal outer circumference and a line connecting the shaft center with center positions of sides of the polygonal outer circumference.

A mold, punch and workpiece are provided. In a preferred embodiment, a tapering outer edge is provided, along with a plurality of rib sets arranged circumferentially about the outer edge, and a ramp. A ramp may be located to facilitate the removal of burrs. Various slot patterns may be provided or formed, including star-shapes/Torx® slots. Using the present invention, a driver bit may be more securely fit to the slot of a screw, for example, allowing the screw to be threaded into a machined part more securely and smoothly, reducing rocking, shaking or tilt.

A universal multiple bit adapter is disclosed. The adapter is designed for compatibility with most of the available screws in the construction market including Philip screw, Roberson screw, Torx screw and nut drivers. The multiple bit adapter comprises a cylindrical enclosed housing chamber with plurality of openings to enable selective application of the elongated driver bits. The screw driver bits are made from hardened steel and housing chamber is made from any metal or plastic material. The multi-functional bit adapter unit further comprises a clip protection member to hold the elongated driver bits from rotating further during short repair maintenance. This convenient single unit is small, compact and easy to carry in a pocket and can be easily attached to a power tool like a drill or impact wrench.

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 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.