A hand operated cutting tool includes a first handle coupled to a first cutting member, wherein the first handle has a first set of projections. The hand operated cutting tool also includes a second handle coupled to a second cutting member, wherein the second handle has a second set of projections. The handles are movable between a full open position and a full closed position, wherein during a first region of travel proximate the full open position the first and second gear projections are at least partly engaged, and wherein during a second region of travel proximate the full closed position the first and second gear projections are disengaged.

A tree pruner includes an extension shaft, a fixed jaw secured on a top of the extension shaft, a blade laterally and pivotally mounted onto the fixed jaw, an operating element connected to the extension shaft for operating the blade and a clamping device laterally secured on the fixed jaw. The fixed jaw and the blade are coupled to cut the branch and the clamping device is provided to clamp the cut branch.

Pruning shears include a cutting head with a spring-biased blade pivotally connected to a jaw and arranged to sever a workpiece received in a bight formed by the jaw. A drive mechanism is connected to the cutting head and an elongate housing is connected to the drive mechanism. The drive mechanism includes a rotation preventer for preventing rotation of a second pulley in relation to the drive mechanism when a drawing torque is applied to the second pulley. The drawing torque is greater than a threshold torque, resulting in a second pulley being stationary in relation to the drive mechanism and the first pulley rotating in relation to the drive mechanism.

A tree shear capable of reducing an opening degree of handles thereof, includes a shearing part, a first handle and a second handle. The shearing part includes a first blade and a second blade pivoted with each other. The first handle is connected with a first blade, the second handle has a front section and a rear section sleeved with each other, and the front section is connected with the second blade. A link rod has an end pivoted with the first handle and other end pivoted with the rear section of the second handle. While the two handles are opened, the link rod affects the front section of the second handle to move relative to the rear section of the second handle, so as to adjust a length of the second handle to reduce the opening degree of the two handles.

A tree shear capable of reducing an opening degree of handles thereof, includes a shearing part, a first handle and a second handle. The shearing part includes a first blade and a second blade pivoted with each other. The first handle is connected with a first blade, the second handle has a front section and a rear section sleeved with each other, and the front section is connected with the second blade. A link rod has an end pivoted with the first handle and other end pivoted with the rear section of the second handle. While the two handles are opened, the link rod affects the front section of the second handle to move relative to the rear section of the second handle, so as to adjust a length of the second handle to reduce the opening degree of the two handles.

Loppers include first and second elongated handles that are both directly connected and indirectly connected through a linkage assembly. The first handle has a static blade having a concave shearing edge extending generally transverse from the longitudinal axis of the first handle. The second handle has a curved end portion that curves toward the first handle and is pivotally secured to the static blade. An articulated blade has a convex cutting edge and is rotatably secured to the static blade. A link connects the curved end portion to an end of the articulated blade. Movement of the second handle relative to the first handle pivots the curved end portion about the static blade, thereby moving the cutting edge relative to the shearing edge via the link. The static blade and articulate blade are offset from the handles and extend generally transverse to the longitudinal axis of the first handle.

A hand-held gripping device that allows one of a surgeon, a dentist, and an orthodontist to reach interior portions of a person's anatomy, includes a gripping portion having a pair of jaws movable relative to each other between fully clamped and fully opened positions thereof, a handle portion spaced apart from the jaw portion by a bendable central portion that has a hollow, bendable corrugated with at least one cord extending therethrough.

A gardening shears includes a first blade, a driving arm pivoted to the first blade, a second blade pivoted to the first blade, and a link arm pivotally connected between the driving arm and the second blade. The bottom portion of the second blade has a sliding groove and positioning recesses. A switching device installed inside the driving arm is locatable at a first usage position where an end of the link arm is stationarily engaged with a positioning recess next to the top end of the sliding groove for enabling a direct cutting mode for cutting a small-sized branch, and a second usage position where the end of the link arm is slidable in the sliding groove and selectively engageable with one of the positioning recesses for enabling a stepwise cutting mode for stepwise cutting off a large-sized branch by changing the force-applying fulcrum.

A tool capable of functioning in a first configuration as one type of cutter or pruner and in a second configuration as another type of cutter or pruner has functions to increase the comfort and efficiency of the cutting process. In some embodiments, a pruning saw assembly may be employed with the cutter mechanism for versatility.

A cutting device includes a jaw with a first jaw member and a second jaw member, a first handle attached to the first jaw member and a second handle rotatably connected to the second jaw member at a second pivot point, a gear including a first set of teeth and a second set of teeth at a first end of the second handle. The second handle is slidably connected to the second jaw member at the second pivot point to allow the second handle and the second set of teeth to move into a disengaged position where the second set of teeth are located at a distance from the first set of teeth. To ensure that the teeth of the gear engage correctly, a slide lock is in an enabling state allowing the second handle and the second set of teeth to slide in a slide direction from the disengaged position to the engaged position only when the first set of teeth and the second set of teeth are aligned into a mutually predetermined position.