A firearm multi-tool and sheath can include a multi-tool having a plurality of tools that are pivotally connected to a frame of the multi-tool; and a sheath for storing the multi-tool. The sheath can include a frame, a spring-loaded bit driver pivotally connected to the frame, a release lever structured and configured to engage with the spring-loaded bit driver to releasably lock the bit driver in place, and bit set storage, wherein the bit set storage is inset in the frame and is structured and configured to house a plurality of bits.

A screwdriver device including a handle having an elongate channel extending partially therethrough of the handle and an axial blade member having a first distal end and a second distal end being configured and disposed for sliding through the elongate channel of the handle and a locking mechanism configured and disposed for releasably locking the axial blade member at a first operable position relative to the handle wherein the first distal end is exposed and the second distal end is disposed within the handle. The screwdriver device further includes a first tool head disposed on the first distal end of the blade member and a second tool head disposed on the second distal end of the blade member and an ejection mechanism configured and disposed within the handle to constantly urge the axial blade member out of the locking mechanism from the first operable position to a second inoperable position.

A connection tool contains a first fixing portion and a second fixing portion. The first fixing portion includes a first large-diameter hexagonal hole, a first small-diameter hexagonal hole extending inward from the first large-diameter hexagonal hole, and a first engagement orifice defined on an outer wall of the first fixing portion proximate to the first large-diameter hexagonal hole and communicating with the first small-diameter hexagonal hole. The second fixing portion includes a second large-diameter hexagonal hole, a second small-diameter hexagonal hole extending inward from the second large-diameter hexagonal hole, and a second engagement orifice defined on an outer wall of the second fixing portion proximate to the second large-diameter hexagonal hole and communicating with the second small-diameter hexagonal hole, wherein a diameter of the first large-diameter hexagonal hole is less than a diameter of the second large-diameter hexagonal hole.

The present disclosure relates to a tool and, more particularly, to cup height adjustment tool and method of use. The tool includes: a first wrench comprising a handle, a shank portion and an opening extending through the handle and the shank portion; and a second wrench having a handle and a shank portion, the shank portion of the second wrench extending through the opening of the first wrench such that a tip of the shank portion of the second wrench extends beyond the shank portion of the first wrench.

A provisional engagement feature for selectively connecting a fastener such as a screw to a driving tool, the fastener incorporating a head with a recess extending therein and a projection contained within the recess for engagement with a corresponding engagement feature and/or selective locking feature of the driving tool.

A screwdriver comprises a handle including a butt and a shank extending from the handle and including a tip. The butt includes a first indicating element having a shape corresponding to the tip and a plurality of second indicating elements arranged around the first indicating element. Each of the second indicating elements has the shape.

A selectively adjustable torque indicating tool is provided for rotating a mechanical fastener to a predetermined torque setting. The tool includes a pair of supports and a tool bit positioned between the pair of supports and engageable with a mechanical fastener such that when the tool bit, a rotational force is imparted on the mechanical fastener. A spring is coupled to the pair of supports, and operatively coupled to the tool bit. The spring includes a first end portion movable relative to the pair of supports between a neutral position and a torqued position in response to the rotational force being imparted on the mechanical fastener by the tool bit. An adjuster is coupled to the spring to adjust a stiffness of the spring such that movement of the first end portion of the spring from the neutral position to the torqued position corresponds to a predefined rotational force.

A twist-drivable pin assembly includes first and second drivers, each having a driving end which can be received in a bore in the end of a twist-drivable pin, and an opposite end at which torque can be applied. The cross-sectional shape of each of the drivers at its driving end has a first plurality of apexes whose relative locations coincide with the apexes of a regular polygon such as a hexagon. The drivers differ from one another in their cross-sectional shapes at the driving end by virtue of one or more faces of at least one of the drivers between adjacent pairs of apexes having a groove formed in it. Each of first and second twist-drivable pins has a bore extending into it which is defined by a second plurality of apexes arranged as a regular polygon such as a hexagon and which is open at one end.

Screws are provided which have a longitudinal axis and include a threaded shank and a head wherein a socket is formed to be engaged by a wrench and having a pluri-lobed outer profile comprising a series of lobes circumferentially offset and separated by a series of circumferentially offset protrusions of the head. Each protrusion is delimited by two flanks and a front length joining the radially inner ends of the flanks and is convex and symmetrical with respect to a center axis radially oriented with respect to the longitudinal axis. The front length is formed by a center face and two inclined side faces each of which joins the radially inner end of the respective flank with a respective end of the center face, which is oriented orthogonally with respect to the center axis of the protrusion. Pluri-lobed wrenches adapted for use with such screws are also provided.

A torque-limiting device having two torque transfer bodies, which, as a consequence of oblique flank contact during relative rotation about an axis, can be moved relative to each other in the direction of the axis against the restoring force of a spring element, which is supported on a shoulder of an abutment, the position of which shoulder is set during calibration of a limiting torque. The torque-limiting device is calibrated by applying a predefined force to the spring element. The resulting spring length defines the axial position of the shoulder of the abutment, which axial position is irreversibly fixed.