A system for cutting narrow workpieces having a track that extends a width between a cutting edge and a non-cutting edge. One or more measuring bodies are connected to a slot adjacent the non-cutting edge that include a measuring bar that extends forward from the front side of the measuring body and under the track as well as extends rearward from the rear side of the measuring body. The measuring bar slides within the measuring body to accommodate the desired workpiece thickness. The measuring bar includes measuring indicia and a measuring member that facilitates measurement of workpiece thickness. Measuring body includes a locking member that locks the measuring bar at a desired thickness. Measuring member may be adjusted to calibrate the measuring member to the track and saw using a locking member. Measuring body also includes a support leg and associated locking mechanism that levels the measuring body.

A power tool system includes at least one power tool which has at least one tool support unit for supporting a tool during machining, and at least one power tool separation device which extends through the tool support unit in at least one operational state. The disclosed power tool separation device comprises at least one cutting unit and at least one guide unit for guiding the cutting unit.

A cleaning sheath for power tools, including a sheath assembly, wherein the sheath assembly includes a sheath, and wherein the sheath is rigid, the sheath is made of an impermeable material, and the sheath is hollow, a lid assembly located at one end of the sheath, a loop assembly located adjacent to the lid assembly, a cleaning solution located within a portion of the sheath, wherein the cleaning solution is adapted to clean and disinfect power tool blades located within the sheath, and an attaching assembly, wherein the attaching assembly includes an attaching element, and wherein the attaching element is removably attached to the sheath, and the attaching element is removably attached to predetermined surfaces.

Power tools with conductive couplings used with active injury mitigation technology are disclosed. Conductive couplings are particularly relevant to table saws, hand-held circular saws, track saws, miter saws, and band saws with active injury mitigation technology. Conductive couplings provide a mechanism through which an electrical signal can be coupled or imparted to a blade, and then monitored for changes indicative of human contact with the blade. An exemplary conductive coupling includes a brush that establishes an electrical connection with a moving part of a power tool, and the brush maintains contact with the moving part of the power tool during at least 40 hours of cumulative time when the motor is spinning the arbor and blade without an interruption in the electrical connection sufficient to trigger the reaction system. A conductive coupling may be two-sided compliant. A conductive coupling may connect to a motor shaft to minimize electrical noise.

A handheld cutting tool includes a housing, a motor, a saw chain, a guide plate, and a blade sheath, where the motor is supported by the housing, the saw chain is driven by the motor to perform a cutting function, an end of the guide plate is supported by the housing and the guide plate is used for supporting and guiding the saw chain, and the blade sheath is formed with or connected to the first limiting portion, the housing or the guide plate is formed with a second limiting portion, and the first limiting portion and the second limiting portion are adaptable to each other so that the blade sheath is not separated from the handheld cutting tool at least under the action of gravity.

A rope severing guard is engageable around a rope or flexible member to protect it from severing by a chainsaw cutting chain. The guard has a flexible body having a rope passage through which a protected rope is positioned. An interior cavity in the body of the rope severing guard is filled flexible fibers which if contacted by a moving cutting chain of a chainsaw, will form clogging engagements with the cutting chain and the chain support it moves upon or with the cutting chain and the motor drive gear powering it.

A chainsaw includes a chain, a liquid pump assembly, a motor, and a controller. The chain is used for implementing a cutting operation. The liquid pump assembly includes a liquid pump and a motor. The liquid pump is used for releasing a liquid for lubricating or cooling the chain. The motor is used for at least driving the liquid pump to operate. The controller is electrically connected to at least the motor. The controller is configured to, when the liquid pump is in the jammed state, control the liquid pump assembly to enter a throttling mode in which a supplied amount of the liquid is reduced, and when the liquid pump exits the jammed state, control the liquid pump assembly to exit the throttling mode. Technical solutions provided by the present application can determine and release the jammed state of the chainsaw.

A chainsaw holder has a holder body. The holder body includes a top hook portion having a first segment, a second segment, and a third segment forming a top hook portion opening, a cutter bar retaining portion having a proximal retaining portion end and a distal retaining portion end where the proximal retaining portion end is connected to the top hook portion, and a guard portion connected to the distal retaining portion end. The cutter bar retaining portion forms a bump out that extends away from the top hook portion opening where the bump out has a first slot and a second slot spaced and parallel to the first slot where the second slot is aligned with the first slot.

A chainsaw holder has a holder body. The holder body includes a top hook portion having a first segment, a second segment, and a third segment forming a top hook portion opening, a cutter bar retaining portion having a proximal retaining portion end and a distal retaining portion end where the proximal retaining portion end is connected to the top hook portion, and a guard portion connected to the distal retaining portion end. The cutter bar retaining portion forms a bump out that extends away from the top hook portion opening where the bump out has a first slot and a second slot spaced and parallel to the first slot where the second slot is aligned with the first slot.

Power tools with conductive couplings used with active injury mitigation technology are disclosed. Conductive couplings are particularly relevant to table saws, hand-held circular saws, track saws, miter saws, and band saws with active injury mitigation technology. Conductive couplings provide a mechanism through which an electrical signal can be coupled or imparted to a blade, and then monitored for changes indicative of human contact with the blade. An exemplary conductive coupling includes a brush that establishes an electrical connection with a moving part of a power tool, and the brush maintains contact with the moving part of the power tool during at least 40 hours of cumulative time when the motor is spinning the arbor and blade without an interruption in the electrical connection sufficient to trigger the reaction system. A conductive coupling may be two-sided compliant. A conductive coupling may connect to a motor shaft to minimize electrical noise.