A striking hand tool includes a grip component where an external surface has a front arc half and a rear arc half, wherein an area of the grip is smaller in a first cross sectional plane further from a head of the tool than a second plane closer to the head portion. A ρ value of the front arc half in the first cross sectional plane is less than approximately 0.45. A measurement from a first axis to a frontmost point in the first cross sectional plane is between 17.5 mm and 19 mm. A ρ value of the front arc half in the second cross sectional plane is less than approximately 0.5. A measurement from the first axis to a frontmost point in the second cross sectional plane is between 18.5 mm and 20 mm. Methods of manufacturing and striking hand tools having desirous durometer measurements are also disclosed.

A multipurpose extension device for attachment and coupling with hand tools, such as tire irons, ratchets and wrenches. The device is an elongated hollow rigid tube containing a rectangular notch and narrow channel. Inside the hollow rigid tube contains magnetic materials to assist securing of inserted or coupled tool. Two ends to device, one end containing a handle other end is open receptacle. This receptacle end of the device is for the acceptance and coupling with hand tools such as, ratchets, pry bars and various other hand tools. A wrench can be inserted into the device by sliding in then turning 90 degrees to secure. One purpose of this device is to provide increased leverage and length of hand tools, for the removal and installation of threaded hardware. Additional use of this device is to increase leverage on pry bars, in the separation items such as, machinery gears.

An adaptive holder is used to provide those lacking fine hand motor control skills and limited arm and shoulder range of motion with the ability to conveniently extend and orient utensils such as forks and spoons. Used with a universal adapter cuff, the holder includes a slotted head which receives the utensil handle. A gripping portion, attached to the head, is received by the cuff. The utensil may be angularly oriented relative to the head and is secured thereto by a frictional interference fit.

An adaptive holder is used to provide those lacking fine hand motor control skills and limited arm and shoulder range of motion with the ability to conveniently extend and orient utensils such as forks and spoons. Used with a universal adapter cuff, the holder includes a slotted head which receives the utensil handle. A gripping portion, attached to the head, is received by the cuff. The utensil may be angularly oriented relative to the head and is secured thereto by a frictional interference fit.

An orthopaedic driving instrument including a first end portion, a second end portion opposite the first end portion, and a central portion, intermediate the first and second end portions, comprising a central section having an outer diameter representing a maximum outer diameter of the driving instrument. The first end comprises a first driving interface sized and shaped to, in operation of the instrument, engage a screw interface of a screw for applying torque to the screw. The second end comprises a second driving interface sized and shaped as the size and shape of the first driving interface.

A surgical instrument includes a handle assembly having a gear drive mechanism. The gear drive mechanism includes a variable radius gear to provide a desired mechanical advantage to a user during actuation of a movable handle of the surgical instrument.

The invention provides a dual-purpose handle, comprising a body, wherein mounting holes are provided in the body and are used for connecting to functional members; the mounting holes are provided in the body in both an axial direction and a radial direction; axial and radial mounting holes provided in the body can enable the handle and the functional members to easily and quickly switch between two connection forms, i.e. straight and T-shaped; and torsional torques that are different in magnitude can be output by means of different connection manners under the action of the same operation force. Clamping devices fitted with the functional members are arranged in the mounting holes; and when the functional members are connected to the handle, the clamping devices can fix the functional members and prevent same from rotating in a cavity of the body of the handle. The axial and radial holes of the handle are configured to be through holes, so that the handle can be adapted to guide needles of different sizes passing through same and is suitable for minimally invasive surgery, thereby further expanding the range of use of the handle.

A configurable leverage bit driver includes a first elongate shaft having a first bit receiving socket in an end face of the distal end. A second elongate shaft is dimensioned to couple with the first elongate shaft in a first axially aligned bit driving configuration. At least one aperture is defined in a lateral side of the second elongate shaft and is dimensioned to selective couple with the first elongate shaft to configure the first elongate shaft and the second elongate shaft in a second bit driving configuration with the second elongate shaft oriented as a lever arm aligned in a transverse axis to the longitudinal axis of the first elongate shaft. The second bit driving configuration may be one or more of a T-handle or an offset T-handle bit driver for increased leverage in driving a fastener.

A trowel having a handle and a blade operably connected to each other, and a hook for securing the trowel to the lip of a container in which the hook includes at least three sections extending generally in the same direction. The first section is positioned a greater distance from the blade than the second and third sections and the second and third sections are spaced apart a distance less than the thickness of the handle. The trowel is secured to the container lip with the first section preferably outside the container and the second and third sections preferably inside the container.

A wrench extender includes an extension member and a retaining member. The extension member has a wrench supporting base with a supporting face and first and second sides adjacent to the supporting face and respectively disposed at two opposite sides of the supporting face. The wrench supporting base is provided with a first holding portion arranged on the supporting face and adjacent to the first side, and a second holding portion arranged on the supporting face and adjacent to the second side. The retaining member is arranged on the wrench supporting base to retain a wrench hold by the wrench supporting base.