A blade clearance adjustment mechanism for a scroll shear tool is configured to adjust a horizontal blade clearance between a fixed blade and a moving blade. The blade clearance adjustment mechanism includes an adjustment bushing supported within a bushing pathway. The adjustment bushing supports a reciprocatory spindle, and a relative position of the adjustment bushing within the bushing pathway affects a relative position of the moving blade with respect to the fixed blade. The blade clearance adjustment mechanism further includes an adjustment member coupled to the adjustment bushing. The adjustment member is configured to change the relative position of the adjustment bushing between a first position associated with a first blade clearance and a second position associated with a second blade clearance.

A sheet cutting and bending apparatus for cutting a wavy sheet and forming trapezoidal notches required for installation includes a base, two cutters at an end of the base, and a force applying mechanism for driving the two cutters. A knife of the cutters has no handle but just has a curved force receiving edge at the rear edge. The force applying mechanism has two rocker aims driven by a rocker rod and a force applying rod bridging between the two rocker arms for abutting a force receiving edge of the knife to produce a shear force and pushing the knife efficiently to cut two incisions at an edge of the sheet. In addition, a bending mechanism is linked with the force applying mechanism and provided for flipping a plate between the two incisions inwardly to form trapezoidal notches required for installation at the edge of the sheet.

A shear blade is for a portable hydraulic cutting device having a blade body. The blade body has assembly and cutting regions, with a cutting edge in the cutting region. A contact surface is on one side of the cutting edge for an additional shear blade. An outer surface on the other side of the cutting edge acts on the object to be cut. A first surface portion of the outer surface extends away from the cutting edge along an orthogonal, which meets the contact surface at the cutting edge, or at an acute angle relative to the orthogonal. A second surface portion connects to the first surface portion at an acute angle to the orthogonal. A third surface portion connects to the second surface portion at an acute angle to the orthogonal. Angle is smaller than angle , which is smaller than angle .

A power tool includes a housing having a first portion defining a forward end of the housing, a second portion defining a rearward end of the housing, an upper surface extending rearwardly from the forward end, and a lower surface extending forwardly from the rearward end. The power tool also includes a motor positioned within the housing, a drive mechanism coupled to the motor and positioned within the housing, an output element coupled to the drive mechanism at the forward end of the housing, a battery pack supported at the rearward end of the housing and electrically coupled to the motor, and an actuator operable to selectively power the motor to drive the drive mechanism and the output element. The actuator is supported by the housing forward of and above the battery pack.

A pneumatic scissor tool comprises a tool housing, a movable blade and a power assembly, the tool housing comprises an assembly space, a mounting opening and a fixed blade, wherein the fixed blade is arranged at the mounting opening, the movable blade is arranged at the mounting opening corresponding to the fixed blade. Further, the power assembly comprises a pneumatic motor, a transmission shaft and an eccentric driving wheel. The eccentric driving wheel is connected with the transmission shaft and comprises an outer ring member, a bearing block, a column mounting space and a plurality of supporting columns, the outer ring member is used for pushing the movable blade, the bearing block is arranged in the outer ring member and installed in an eccentric manner with the transmission shaft, and the supporting columns is arranged in the column mounting space and are tightly connected with each other.

A shear blade (2) is for a portable hydraulic cutting device, such as a rescue device having a blade body (9). The blade body (9) has an assembly region (18) and a cutting region (15), a cutting edge (16) in the cutting region (15), a contact surface (13), located on one side of the cutting edge (16), for an additional shear blade. An outer surface (14), located on the other side of the cutting edge (16), is provided to act on the object to be cut. The cutting region (15) has a recess (22) for receiving a cutting insert (21). The recess (22) is configured such that the cutting insert (21) is insertable into the recess (22) at an acute angle to the contact surface (13) of the shear blade (2).

A shear blade is for a portable hydraulic cutting device having a blade body. The blade body has assembly and cutting regions, with a cutting edge in the cutting region. A contact surface is on one side of the cutting edge for an additional shear blade. An outer surface on the other side of the cutting edge acts on the object to be cut. A first surface portion of the outer surface extends away from the cutting edge along an orthogonal, which meets the contact surface at the cutting edge, or at an acute angle relative to the orthogonal. A second surface portion connects to the first surface portion at an acute angle to the orthogonal. A third surface portion connects to the second surface portion at an acute angle to the orthogonal. Angle is smaller than angle , which is smaller than angle .

A portable motorized cutting tool has a motor housed in a tool body, a cutting member, a transmission linking the motor to the cutting member, and at least one guard for protecting the hand of the user, providing a passage for the hand around at least one of a control member of the tool, and a gripping handle of the tool. The tool has a cover capable of occupying a so-called closed position against the body of the tool, and a so-called open position separated from the body of the tool and giving access to a part of the tool protected by the cover in the closed position, the cover being linked to the body of the tool by the guard.

The present invention provides a connection device or tool (10, 110, 210, 310, 410, 510, 610, 1110, 2110, 3110, 4110) to connect a first tool (80, 90) to a second tool (90,80), the connection device or tool (10, 110, 210, 310, 410, 510, 610, 1110, 2110, 3110, 4110) comprising at least one shell member 30 which clamps a first end to said first tool (80, 90) and a second end of said at least one shell member 30 to engage with said second tool (90,80), whereby relative rotation between said first tool and second tool is prevented, and axial separation of said first tool (80, 90) and second tool (90,80) is prevented or is assisted in being prevented. This results in a safer combination of the first tool (80, 90) and second tool (90,80), and allows for a one handed operation of the combination.

A portable electric rescue tool, such as spreader and cutter tool, that allows for manual or remote operation, and operates on a DC power source, which may be an external power source and/or an onboard rechargeable battery. For example, the tool includes a battery cradle or battery attachment portion adapted to removably receive a rechargeable battery pack and electrically couple the battery pack to the tool. The tool also includes a power adapter that is adapted to be removably coupled to the battery attachment portion instead of the battery pack, and allows the tool to be electrically connected to an external DC power source, such as a vehicle battery or other DC power source.