A multi-purpose hand tool includes a first side and a second side that are pivotally connected. The first side includes a lower end having a first handgrip and an upper end including a shaft having a hammer head at one end; a first recess extending at least partially along a bottom of the shaft for holding one or more straight fasteners; and a second recess located substantially in a bottom part of the hammer head for holding one or more rounded fasteners.

An apparatus including a head having a hammering portion and an oppositely arranged claw portion, the claw portion curving downwardly and away from the top side of the head toward the handle and including a back end with at least four flat ended teeth separated by at least three, substantially equal V-shaped grooves centered on a longitudinal axis of the head with inner edges of each of the V-shaped grooves being tapered along opposite sides of the V-shaped groove from adjacent a front of each of the at least four teeth toward a sharp notch formed at a junction of the sides of the V-shaped groove and from a top side of each of the at least four teeth inwardly toward a bottom side of each of the at least four teeth, the outer two of the at least four teeth having substantially equal terminal widths that are wider than the at least inner two of the at least four teeth and all of the at least four teeth being substantially equal in length.

An apparatus including a head having a hammering portion and an oppositely arranged claw portion, the claw portion curving downwardly and away from the top side of the head toward the handle and including a back end with at least four flat ended teeth separated by at least three, substantially equal V-shaped grooves centered on a longitudinal axis of the head with inner edges of each of the V-shaped grooves being tapered along opposite sides of the V-shaped groove from adjacent a front of each of the at least four teeth toward a sharp notch formed at a junction of the sides of the V-shaped groove and from a top side of each of the at least four teeth inwardly toward a bottom side of each of the at least four teeth, the outer two of the at least four teeth having substantially equal terminal widths that are wider than the at least inner two of the at least four teeth and all of the at least four teeth being substantially equal in length.

A force-limiting and damping device has a body, a tapping element, and an elastic element. The body has a connecting segment and a holding segment. The connecting segment is formed on an end of the body and has a mounting hole. The holding segment is formed on the body opposite the connecting segment. The tapping element is connected to the body to move relative to the connecting segment. The elastic element is mounted between the tapping element and the connecting segment to abut against the tapping element and to enable the tapping element to move relative to the connecting segment. The structural relationship between the connecting segment, the tapping element, and the elastic element may provide a delayed rebound and damping effect to the reaction force, and the applied force is continuously transferred to a tapping object. This may reduce noise and the loss of energy.

A force-limiting and damping device has a body, a tapping element, and an elastic element. The body has a connecting segment and a holding segment. The connecting segment is formed on an end of the body and has a mounting hole. The holding segment is formed on the body opposite the connecting segment. The tapping element is connected to the body to move relative to the connecting segment. The elastic element is mounted between the tapping element and the connecting segment to abut against the tapping element and to enable the tapping element to move relative to the connecting segment. The structural relationship between the connecting segment, the tapping element, and the elastic element may provide a delayed rebound and damping effect to the reaction force, and the applied force is continuously transferred to a tapping object. This may reduce noise and the loss of energy.

A multi-purpose hand tool includes a first side and a second side that are pivotally connected. The first side includes a lower end having a first handgrip and an upper end including a shaft having a hammer head at one end; a first recess extending at least partially along a bottom of the shaft for holding one or more straight fasteners; and a second recess located substantially in a bottom part of the hammer head for holding one or more rounded fasteners.

A compression strength attachment block has a tension strength attachment loop pivotally attached to the block. The loop hooks around a lever tool adjacent to a working end for enhanced attack angle and increased leverage in fastener extraction, prying, and lifting work. Magnets on a tool attachment face assist in aligning and holding the block to the lever tool. End magnets hold fasteners after extraction or before insertion. Recesses in the block contain or retain other working tools.

A compression strength attachment block has a tension strength attachment loop pivotally attached to the block. The loop hooks around a lever tool adjacent to a working end for enhanced attack angle and increased leverage in fastener extraction, prying, and lifting work. Magnets on a tool attachment face assist in aligning and holding the block to the lever tool. End magnets hold fasteners after extraction or before insertion. Recesses in the block contain or retain other working tools.

A force-limiting and damping device has a body, a tapping element, an elastic element, and a reinforcing element. The body has a connecting segment with a mounting hole. The tapping element is movably connected to the body and has a mounting segment, a tapping segment, a fixing segment, and a protrusion segment. The protrusion segment is formed on a connecting portion between the mounting segment and the tapping segment. The reinforcing element is mounted on the tapping element between the elastic element and the tapping segment of the tapping element and abuts against the protrusion segment. The force-limiting and damping device can improve structural strength, can prolong service life, and can avoid deflection during a tapping process.

A force-limiting and damping device has a body, a tapping element, an elastic element, and a reinforcing element. The body has a connecting segment with a mounting hole. The tapping element is movably connected to the body and has a mounting segment, a tapping segment, a fixing segment, and a protrusion segment. The protrusion segment is formed on a connecting portion between the mounting segment and the tapping segment. The reinforcing element is mounted on the tapping element between the elastic element and the tapping segment of the tapping element and abuts against the protrusion segment. The force-limiting and damping device can improve structural strength, can prolong service life, and can avoid deflection during a tapping process.