An adjustable wrench (1) with a head portion (200), automatically adjustable within its size range. The fastener (80) to be operated is fitted between the fixed jaw (201) and moving jaw (300), the operators thumb pressure released, automatically propelling the moving jaw 300 towards the fixed jaw (200), the use of four workpiece contacting surfaces (202, 203, 302, 303), two within each opposing jaw (201, 300), engaging the four corresponding actual levered faces (83) to each apply a drive force to a hexagonal fastener head 81. The head portion (200) illustrated in section in order to show the gear teeth (403) on the head end (402) of the handle (400) levering closed the moving jaw (300) via its associated wedge-shaped rack gear (312). The handle (400) pivoting at the point PP that the relevant head end gear tooth (403) engages the corresponding rack gear tooth (312) further urging the handle locking teeth (407) into the pawl locking teeth (61) within the confines of the elongate pin hole elongate portion 404 creating a further jaw (201, 300) ratcheting/locking closure mechanism.

An adjustable wrench (1) with a head portion (200), automatically adjustable within its size range. The fastener (80) to be operated is fitted between the fixed jaw (201) and moving jaw (300), the operators thumb pressure released, automatically propelling the moving jaw 300 towards the fixed jaw (200), the use of four workpiece contacting surfaces (202, 203, 302, 303), two within each opposing jaw (201, 300), engaging the four corresponding actual levered faces (83) to each apply a drive force to a hexagonal fastener head 81. The head portion (200) illustrated in section in order to show the gear teeth (403) on the head end (402) of the handle (400) levering closed the moving jaw (300) via its associated wedge-shaped rack gear (312). The handle (400) pivoting at the point PP that the relevant head end gear tooth (403) engages the corresponding rack gear tooth (312) further urging the handle locking teeth (407) into the pawl locking teeth (61) within the confines of the elongate pin hole elongate portion 404 creating a further jaw (201, 300) ratcheting/locking closure mechanism.

A plier wrench is provided and includes a jaw that can be disengaged from the remainder of the wrench and reengaged with the remainder of the wrench while the remainder of the wrench remains in its fully assembled condition. In one form, the jaw is reversible and includes two different jaw surfaces that can be selectively utilized depending upon the type of workpiece that will be engaged by the plier wrench.

An adjustable wrench (1) with a head portion (200), automatically adjustable within its size range. The fastener (80) to be operated is fitted between the fixed jaw (201) and moving jaw (300), the operators thumb pressure released, automatically propelling the moving jaw 300 towards the fixed jaw (200), the use of four workpiece contacting surfaces (202, 203, 302, 303), two within each opposing jaw (201, 300), engaging the four corresponding actual levered faces (83) to each apply a drive force to a hexagonal fastener head 81. The head portion (200) illustrated in section in order to show the gear teeth (403) on the head end (402) of the handle (400) levering closed the moving jaw (300) via its associated wedge-shaped rack gear (312). The handle (400) pivoting at the point PP that the relevant head end gear tooth (403) engages the corresponding rack gear tooth (312) further urging the handle locking teeth (407) into the pawl locking teeth (61) within the confines of the elongate pin hole elongate portion 404 creating a further jaw (201, 300) ratcheting/locking closure mechanism.

An adjustable wrench (1) with a head portion (200), automatically adjustable within its size range. The fastener (80) to be operated is fitted between the fixed jaw (201) and moving jaw (300), the operators thumb pressure released, automatically propelling the moving jaw 300 towards the fixed jaw (200), the use of four workpiece contacting surfaces (202, 203, 302, 303), two within each opposing jaw (201, 300), engaging the four corresponding actual levered faces (83) to each apply a drive force to a hexagonal fastener head 81. The head portion (200) illustrated in section in order to show the gear teeth (403) on the head end (402) of the handle (400) levering closed the moving jaw (300) via its associated wedge-shaped rack gear (312). The handle (400) pivoting at the point PP that the relevant head end gear tooth (403) engages the corresponding rack gear tooth (312) further urging the handle locking teeth (407) into the pawl locking teeth (61) within the confines of the elongate pin hole elongate portion 404 creating a further jaw (201, 300) ratcheting/locking closure mechanism.

A ratcheting wrench includes a first jaw with a first jaw insert configured to move relative to the first jaw and a first spring configured to bias the first jaw insert in a first direction. The wrench also includes a second jaw with a second jaw insert configured to move relative to the second jaw and a second spring configured to bias the second jaw insert in a second direction opposite the first direction. When the first jaw insert moves relative to the first jaw and the second jaw insert moves relative to the second jaw, a space between the first jaw and the second jaw increases. This allows the jaws of the wrench to slip over corners of a fastener to achieve a ratcheting effect.

A ratcheting wrench includes a first jaw with a first jaw insert configured to move relative to the first jaw and a first spring configured to bias the first jaw insert in a first direction. The wrench also includes a second jaw with a second jaw insert configured to move relative to the second jaw and a second spring configured to bias the second jaw insert in a second direction opposite the first direction. When the first jaw insert moves relative to the first jaw and the second jaw insert moves relative to the second jaw, a space between the first jaw and the second jaw increases. This allows the jaws of the wrench to slip over corners of a fastener to achieve a ratcheting effect.

A wrench includes a first wrench body with a first jaw and a second wrench body with a second jaw movably coupled to the first wrench body and the first and the second jaws include a space therebetween. The first wrench has a first catching portion. The second wrench body defines a cavity and includes a locking device engaged in the cavity. The locking device includes a catch with a second catching portion disposed in the cavity and the second catching portion is selectively engagable with the first catching portion. The locking device includes a controller connected to the catch. The controller is operably movable to lever the catch. The locking device includes a resilient member urging the catch toward the first wrench body.

A wrench includes a first wrench body with a first jaw and a second wrench body with a second jaw movably coupled to the first wrench body and the first and the second jaws include a space therebetween. The first wrench has a first catching portion. The second wrench body defines a cavity and includes a locking device engaged in the cavity. The locking device includes a catch with a second catching portion disposed in the cavity and the second catching portion is selectively engagable with the first catching portion. The locking device includes a controller connected to the catch. The controller is operably movable to lever the catch. The locking device includes a resilient member urging the catch toward the first wrench body.

In a tool for mounting and dismounting a pipe clamp provided by the present creation, a first end portion and a movable second end portion are separately disposed on a base, and a connecting rod mechanism is used to convert circular motion into linear motion of the second end portion by force, so as to reduce the distance between the second end portion and the first end portion, thereby achieving an effect that the annular inner diameter of a pipe clamp is increased when the pipe clamp is held between the first end portion and the second end portion.