A tool assembly for screwdriver with quick-release drill bits includes a bit main body, a sliding sleeve, a spring and a locating bolt. The bit main body has a shaft, and an outer periphery of a front end of the shaft has a plurality of axial cutting surfaces to form a connecting portion with a polygonal cross section. The sliding sleeve comprises a rear end and a front end, and a driving hole with a polygonal cross section axially penetrates through the sliding sleeve. An engaging groove formed at an inner periphery of the driving hole is located adjacent to the rear end of the sliding sleeve. The spring, the locating bolt and the engaging groove are configured to effectively shorten lengths of the connecting portion of the main body and the sliding sleeve thus lowering the manufacturing cost and increasing the competitive advantage in the market.

A wrench with translational wrench jaw comprises a first wrench jaw, a first handle and a connection portion; a second handle and a second wrench jaw; a first connecting rod, connected with the first handle, a first end of the first connecting rod being arranged with an elastic component; a second connecting rod, connected with the second handle, a first end of the second connecting rod being arranged with an elastic component, the second end of the first connecting rod being connected with the second end of the second connecting rod. The wrench with translational wrench jaw provided by the present invention is suitable for gripping various workpieces; adopting two-stage transmission can provide greater gripping force, being more efficient and avoiding structural damage, thus prolonging the service life; By adopting locking mechanism can release operator's hands and be more convenient.

This disclosure is related to an adjustable wrench for engaging work objects. The adjustable wrench has a handle having a handle end and a flat serrated jaw surface. The adjustable wrench also has an L-shaped movable jaw having a lever arm and a serrated jaw, the lever arm having a terminal end and an extension element extending from the terminal end having an opening therethrough. The adjustable wrench further comprises a projection extending from the handle having a tunnel therein for accepting the lever arm of the L-shaped movable jaw and a grip enhancing apparatus.

An adjustable wrench includes a handle having a first toothed portion and a first recess. A head has a fixed jaw and a second hole. A space is defined in the head and the first tooted portion of the handle is inserted into the space. A second recess is defined in one of sidewalls of the space. A pin extends through the second hole and the first hole to pivotably connect the head to the handle. A movable jaw has a slide inserted into a slot in the second side of the head. A resilient member is mounted to the pin and has two legs which are respectively located in the first and second recesses. The movable jaw has a second toothed portion which is engaged with the first toothed portion. The movable jaw is quickly moved relative to the fixed jaw by the resilient member.

The present invention provides a wrench, and its structure includes a guide rod, a first pawl mounted on the guide rod, a sliding member sheathed on the guide rod, a second pawl mounted on the sliding member and matching with the first pawl, and a toothed block disposed on the sliding member and matching with the guide rod. The toothed block has a first position and a second position. When the toothed block is in the first position, the toothed block is slidable along the guide rod toward the first pawl, and is locked in the direction away from the first pawl. When the toothed block is in the second position, the toothed block is slidable along the guide rod toward or away from the first pawl.

An adjustable spanner is provided. The adjustable spanner may comprise a pair of jaw arms, co-operating to move relative to one another, the co-operating jaw arms are each provided at their ends with a jaw, wherein two adjacent jaws constitute a spanner head; a housing for receiving the co-operating jaw arms, the co-operating jaw arms slide longitudinally relative to the housing for setting pre-selected discrete standard fastener sizes, wherein the jaw arms are substantially identical, and are received in the housing being rotated 180 relative to one another about their longitudinal axis.

An adjustable spanner is provided. The adjustable spanner may comprise a pair of jaw arms, co-operating to move relative to one another, the co-operating jaw arms are each provided at their ends with a jaw, wherein two adjacent jaws constitute a spanner head; a housing for receiving the co-operating jaw arms, the co-operating jaw arms slide longitudinally relative to the housing for setting pre-selected discrete standard fastener sizes, wherein the jaw arms are substantially identical, and are received in the housing being rotated 180 relative to one another about their longitudinal axis.

This disclosure is related to an adjustable wrench for engaging work objects. The adjustable wrench has a handle having a handle end and a flat serrated jaw surface. The adjustable wrench also has an L-shaped movable jaw having a lever arm and a serrated jaw, the lever arm having a terminal end and an extension element extending from the terminal end having an opening therethrough. The adjustable wrench further comprises a projection extending from the handle having a tunnel therein for accepting the lever arm of the L-shaped movable jaw and a grip enhancing apparatus.

The present invention provides a wrench with translational wrench jaw comprising a first wrench jaw, a first handle and a connection portion, the connecting portion being arranged with a long hole, the long hole being provided with a first flank and a second flank which are parallel to each other, and the first flank being arranged with teeth; a second handle, connected with the connecting portion via a claw arranged in the long hole, the first end of the second handle being arranged with a cam; a second wrench jaw, connected with the connecting portion in a sliding manner, the second wrench jaw being arranged with a recess to accommodate the cam; a first connecting rod, connected with the first handle, a first end of the first connecting rod being arranged with an elastic component; a second connecting rod, connected with the second handle, a first end of the second connecting rod being arranged with an elastic component, the second end of the first connecting rod being connected with the second end of the second connecting rod. The wrench with translational wrench jaw provided by the present invention is suitable for gripping various workpieces; adopting two-stage transmission can provide greater gripping force, being more efficient and avoiding structural damage, thus prolonging the service life; By adopting locking mechanism can release operator's hands and be more convenient.

An adjustable wrench with strength enhancing structural design includes a body including a grip end and a driving head. The driving head includes a fixed jaw and a movable jaw. The movable jaw engages and is operably movable in a groove. The groove includes two lateral walls facing oppositely and spacing from each other. Each of the two lateral walls includes a first surface and a second surface. The first surfaces of the two lateral walls face oppositely and are separated by a space. The first and second surfaces of each of the two lateral walls have a common edge and an included angle less than 90 degrees. The movable jaw includes two slopped surfaces corresponding to and abutting against the second surfaces of the two lateral walls.