A cutting tool includes a first arm assembly which includes a first jaw member connected to a first handle. A second arm assembly includes a second jaw member connected to a second handle. The first arm assembly and the second arm assembly are rotatably connected to one another so as to rotate relative to one another. The first jaw member has a first outer surface configured to project away from the first jaw member and defines a first boundary. The second jaw member has a second outer surface configured to project away from the second jaw member and defines a second boundary. A cutting blade is positioned between the first and second jaw members and is positioned spaced apart from the first boundary and the second boundary with the first and second arm assemblies positioned in one of an open position or closed position.

A support arm (240) for a hand-held work tool (100, 200, 800, 1000), the work tool comprising an electric motor (140) arranged to drive a circular cutting tool (130). The support arm (240) is arranged to support the circular cutting tool (130) on a first end (241) of the support arm, and to support the electric motor (140) at a second end of the support arm (242) opposite to the first end (241). The support arm (240) is arranged to at least partially enclose the electric motor (140).

A hand-held electrically powered cut-off tool (100, 200, 800, 1000, 1900, 2500) comprising a first part (110) and a second part (120) arranged vibrationally isolated from each other, the first part (110) comprising an interface (2510) for holding a cutting tool (130) and an electric motor (140) arranged to drive the cutting tool, wherein the first part is associated with a first mass (M1), the second part (120) comprising a battery compartment (150) for holding an electrical storage device (220) arranged to power the electric motor (140) as well as front (190) and rear (195) handles for operating the cut-off tool, wherein the second part is associated with a second mass (M2), wherein the electrical storage device (220) is associated with a third mass (M3), and wherein the cutting tool is associated with a fourth mass (M4), wherein a ratio of the second mass (M2) to the sum of the first and second masses (M1+M2) is at least 0.3, and preferably more than 0.35; wherein a ratio of a sum of the second and the third mass (M2+M3) to the sum of the first and fourth masses (M1+M4) is at least 0.6, and preferably more than 0.8 and even more preferably more than 1.0; wherein a ratio of a sum of the second and the third mass (M2+M3) to the sum of the weight of the entire device including electrical energy storage and cutting disc, is at least 0.45, and preferably more than 0.5.

A hand-held electrically powered cut-off tool (100, 200, 800, 1000, 1900, 2500) comprising a first part (110) and a second part (120) arranged vibrationally isolated from each other, the first part (110) comprising an interface (2510) for holding a cutting tool (130) and an electric motor (140) arranged to drive the cutting tool, wherein the first part is associated with a first mass (M1), the second part (120) comprising a battery compartment (150) for holding an electrical storage device (220) arranged to power the electric motor (140) as well as front (190) and rear (195) handles for operating the cut-off tool, wherein the second part is associated with a second mass (M2), wherein the electrical storage device (220) is associated with a third mass (M3), and wherein the cutting tool is associated with a fourth mass (M4), wherein a ratio of the second mass (M2) to the sum of the first and second masses (M1+M2) is at least 0.3, and preferably more than 0.35; wherein a ratio of a sum of the second and the third mass (M2+M3) to the sum of the first and fourth masses (M1+M4) is at least 0.6, and preferably more than 0.8 and even more preferably more than 1.0; wherein a ratio of a sum of the second and the third mass (M2+M3) to the sum of the weight of the entire device including electrical energy storage and cutting disc, is at least 0.45, and preferably more than 0.5.

A power pack for a power tool. The power pack includes an electric motor configured for driving engagement with the power tool. The power pack also includes a motor controller having a relay circuit connected a electric motor. The relay circuit includes has a switch selectively connected to a power supply. The power supply powers the electric motor. The motor controller also includes non-transitory computer-readable storage media having computer-executable instructions for monitoring operation of the stored power pack. When executed by at least one processor, the computer-executable instructions cause the at least one processor to: monitor input data relating to operation of the power pack; determine, based on the input data, that operation of the power pack deviated from an ideal state; and, based on the determination of deviation, cause the switch to electrically disconnect the electric motor from the power supply.

The invention relates to a blade receiver assembly, comprising a switch comprising a switch cover and a switch base fixedly connected to each other, wherein the switch base has an opening; an axle with a structural section and a body receiver section, wherein the axle is arranged to move through the opening of the switch base in relation to the switch. The invention also relates to a cutting device comprising a blade receiver assembly.

A hand-held rotary cutter assembly for cutting material includes a blade receptacle having a first surface having an indentation formed therein. An edge guide is received in the indentation. The edge guide includes a continuous linear edge. A blade engages the edge guide. The edge guide and the blade are configured to move simultaneously and linearly from a first position to a second position. A segmented portion of the blade extends outwardly from the continuous linear edge of the edge guide.

A cutting tool includes a rotary blade driven by a motor, a fixed blade disposed opposing the rotary blade, a housing holding the motor, and a battery mount part on a rear portion of the housing. The battery mount part has a guide groove that slidably receives a rail of a power tool battery pack. A blade cover is disposed partially around the rotary blade, and a portion or all of the blade cover has a shape in which the farther forward it goes the more it goes toward the side that has the fixed blade, viewed from the rotary blade. A base holds the fixed blade, and a portion or all of the base has a shape in which the farther forward it goes the more it goes toward the side that has the fixed blade, viewed from the rotary blade.

A cutting tool includes a rotary blade driven by a motor, a fixed blade disposed opposing the rotary blade, a housing holding the motor, and a battery mount part on a rear portion of the housing. The battery mount part has a guide groove that slidably receives a rail of a power tool battery pack. A blade cover is disposed partially around the rotary blade, and a portion or all of the blade cover has a shape in which the farther forward it goes the more it goes toward the side that has the fixed blade, viewed from the rotary blade. A base holds the fixed blade, and a portion or all of the base has a shape in which the farther forward it goes the more it goes toward the side that has the fixed blade, viewed from the rotary blade.

A cutter, such as a tubing cutter or a swing cutter. The cutter may include a cutting wheel; a roller; a housing assembly including a first housing portion supporting the cutting wheel and a second housing portion supporting the roller; a shaft connecting the housing portions, rotation of the shaft causing relative movement of the housing portions along a shaft axis; and a knob connected to the shaft and engageable by a user to rotate the shaft, the knob having, in a plane perpendicular to the shaft axis, a non-symmetrical shape defined by opposite circular sector portions and opposite lever portions, each lever portion being engageable by a user to apply a force to the knob in a direction of rotation. The cutter may include a shaft with a radial shoulder preventing movement of the shaft from the cavity through an opening in the housing portion.