A hand tool assembly includes a cylindrical first body having multiple first grooves. A driving head is connected to one end of the first body and has a ratchet wheel which is controlled by a ratchet mechanism in the driving head. The first body extends through the ratchet wheel. A handle unit is movably mounted to the first body and the handle unit is selectively positioned at one of the first grooves. The second body has two different connection portions on two ends thereof, and the second body can be replaced by other handle tools.

Tools are disclosed herein that in some examples include a handle consisting of first and second handle portions. The first and second handle portions include opposing first and second distal ends, respectively. Some of the exemplary tools further include a central toolhead disposed between the first and second handle portions. The central toolhead is in a same plane as the first and second handle portions and includes a first closed-ended wrench head. The exemplary tools disclosed herein exhibit improved leverage properties, among other advantages.

A hand tool assembly with magnetic securing device includes a body, a sleeve, a collar and two resilient pieces. The body has a first space and a first groove. The sleeve has a first passage, a second space, a third space, a first distance and a fourth space. A magnetic part is located in the second space. A clip is engaged with the first groove and movable within the third space. A collar is secured in the fourth space to restrict the clip to prevent the body from dropping form the sleeve. The collar has two resilient pieces received therein and each resilient piece has a third engaging portion which contacts the outer periphery of the body to provide friction when the sleeve is moved relative to the body. A driving piece is connected to the body and drives a bolt or a screw which is attracted by the magnetic part.

A wrench assembly includes first and second wrench members, and a switch, having an engagement member and a proximal extremity, mounted to the first wrench member. The switch moves between engaging and disengaging positions of the engagement member. The proximal extremity is undepressed in the engagement member engaging position, and is depressed in the engagement member disengaging position. The switch moves from the engagement member engaging position to the engagement member disengaging position, when the second wrench member is partially installed into the first wrench member. The switch moves from the engagement member disengaging position to the engagement member engaging position releasably engaging the engagement member to the complemental engagement member disabling the second wrench member from being withdrawn from the first wrench member, when the engagement member registers with the complemental engagement member when the second wrench member is installed into the first wrench member.

A cutter including a cutting head and an adjustable handle pivotally coupled to the cutting head. The adjustable handle includes a first adjustment assembly to change a length the adjustable handle extends from the cutting head. The adjustable handle also includes a second adjustment assembly to change the position of the adjustable handle with respect to the cutting head.

An adjustable tool extender comprising an elongated body, where the elongated body is divided between a handle and an extendable drive; an engaging end at a far end of the extendable drive, where the engaging end fits into a tool bit; a receiving end at a far end of the handle, where the receiving end receives a drive on a tool; and a means for locking along the handle, where the means for locking extends the extendable drive a distance from the handle.

A cutter including a cutting head and an adjustable handle pivotally coupled to the cutting head. The adjustable handle includes a first adjustment assembly to change a length the adjustable handle extends from the cutting head. The adjustable handle also includes a second adjustment assembly to change the position of the adjustable handle with respect to the cutting head.

A detachable and torque-adjustable cross wrench includes a primary bar and a torque-setting secondary bar, and an end of the primary bar is a socket insertion end and the other end of the primary bar is installed with an assistant turning handle provided for pivoting. A penetrating hole formed at a thickening middle section is provided for connecting the torque-setting secondary bar to form a cross wrench. The torque-setting secondary bar includes a plugging inner rod with a spacer ring slot, a force applying outer rod containing a torque-setting module, a handheld turning handle, an elastic pushing member, a torque-adjusting screw cap and a retaining ring. The torque-adjusting screw cap is provided for rotating and adjusting the torque-setting module to a predetermined torque value, so as to achieve an expected torque-setting.

A vent manipulation system includes a building that has a ceiling and a floor. The ceiling is spaced from the floor and the ceiling is inaccessible without a ladder. A vent is coupled to the ceiling and the vent may pass air through the ceiling. A tool is provided and the tool may be manipulated. The tool engages the vent such that the tool adjusts the vent between an open position and a closed position. Thus, the tool adjusts the vent without the ladder.

A wrench extender useful for extending both the reach and leverage of most double-ended wrenches. The extender includes a flat base with spaced clamping receptacles for receiving and securing a wrench handle, the receptacles selectively closed with clamping means locking the wrench handle in the receptacles with a compressive and/or frictional fit. The wrench is further secured by its inner non-free end in a downwardly-angled neck or relief connecting the wrench-supporting base and an aligned grip. In a first form, the neck is provided with a vertical stud for engaging the inner end of the wrench to prevent longitudinal shifting. In a second form, the neck terminates in a vertical wall adjacent the grip to longitudinally stop the inner end of the wrench.