A power tool includes a rotatable support arrangement for supporting at least one cutting disc. An upper shroud member and a lower shroud member cooperate to define a volume in which the at least one cutting disc can be supported. The rotatable support arrangement can be coupled to the upper shroud member such that movement of the upper shroud member towards the lower shroud member causes the cutting disc to protrude through an opening in the lower shroud member. A biasing member urges the upper shroud member and the lower shroud member away from each other. A limiting mechanism limits the range of movement of the upper shroud member relative to the lower shroud member under action of the biasing member. The limiting mechanism can be disengaged by opening the upper shroud member via at least one hinge coupling.

A dust collector includes a body configured to be removably attached to a lower side of a tool body of a drilling tool, a dust storing part to be disposed on a lower side of the body, a sliding part having a suction port and held by the body so as to be slidable in a front-rear direction, a dust transfer passage extending within the sliding part and connecting the suction port and an inlet of the dust storing part, and a tool connection passage disposed within an internal space of the body and configured to connect an outlet of the dust storing part and an inlet of the tool body of the drilling tool. The dust storing part includes the inlet, a filter, a dust storing space and the outlet. The filter is disposed forward of the inlet of the dust storing part.

A flush valve, a dust collector provided with such a flush valve and a dust collection system, are disclosed. The flush valve includes a valve body and a valve spool. The valve body is internally provided with a fluid passageway. The valve body is provided with an inlet, a first outlet and a second outlet. The first outlet is fluidly connected to a device to be flushed. The valve spool includes a movable part, a fixed part and an elastic part, the fixed part being provided in the valve body, and the elastic part elastically connecting said fixed part to the movable part. One end of the movable part being provided with a first spool land for blocking the first outlet. The first spool land being configured to be pushed away from said first outlet by fluid in the fluid passageway when the pressure drops due to blockage.

Methods and devices relating to loose debris chip shielding for dust free tile removal and ordinary tile removal projects. During the tile removal process, a chipping hammer powers a chipping hammer blade that breaks up tiles into pieces. The larger, heavier pieces are simply pushed away, but smaller debris chips break off with enough force to send them flying up in the air and in different directions landing in undesirable locations. The methods and devices herein protect equipment, environments, and individuals from damage caused by loose debris chips during tile removal. A shield with several degrees of freedom moves freely in response to chipping hammer vibrations and blocks loose flying debris chips, deflecting them toward the ground.

A power tool system includes a power tool, a dust collector and a clamping device. The clamping device is configured to detachably connect the dust collector to the power tool. The clamping device includes a first connection mechanism and a second connection mechanism. The first connection mechanism is configured to connect the power tool. The second connection mechanism is configured to connect the dust collector. The second connection mechanism includes a limiting assembly and a fastener. The limiting assembly is capable of clamping the dust collector and is fastened by the fastener. The second connection mechanism further includes a contact surface. When the fastener is in contact with the contact surface, a force is generated between the fastener and the contact surface, and the force is always perpendicular to the contact surface.

A debris catching device may be provided. The debris catching device may have a body with a central region and a peripheral rim. The debris catching device may further have a tool aperture for accommodating at least one tool. The tool aperture may further have a wheel selection element for changing an aperture shape or size. Lastly, the debris catching device may have a magnet for attracting metal debris and for securing to a tool or work surface.

A handheld power tool including a housing, a tool receptacle disposed on a first end of the housing and configured to receive a tool accessory, and a motor positioned within the housing and operatively coupled to the tool receptacle to drive the tool accessory. A dust container is selectively coupled to the housing. A dust tube is coupled to the first end of the housing and in fluid communication with the dust container, wherein the dust tube is movable between an extended position and a retracted position. A fan is positioned within the housing and is operable to generate a suction air flow path through the dust tube and into the dust container, wherein the fan rotatably driven by the motor.

A sander including a housing, a motor housed in the housing and a platen which is driven by the motor. The sander also includes a dust chute, a dust container and a one-way valve disposed in the dust chute. The one-way valve allows air to flow in a direction towards the dust container and limits the flow of air in a direction away from the dust container. The one-way valve allows air flow in the direction towards the dust containers through multiple different openings.

A dust collector for use with a hand-held power tool includes a housing, a suction pipe coupled to the housing, and an electric motor positioned in the housing. The dust collector additionally includes a suction fan driven by the electric motor and operable to generate a vacuum in the suction pipe, and a depth stop assembly. The depth stop assembly is configured to limit the axial movement of the suction pipe. The depth stop assembly is configured to be alternately positioned on opposite sides of the suction pipe in a first configuration and a second configuration, respectively.

A dust collector for use with a power tool comprises a housing, a telescoping suction pipe coupled to the housing, a suction fan positioned in the housing and operable to generate a vacuum in the suction pipe, a dust container coupled to the housing and positioned upstream of the fan, a filter at least partially arranged in the dust container, and a filter cleaning mechanism. The filter cleaning mechanism includes an anvil, a striker moveable between a first striker position, in which the striker is spaced from the anvil, and a second striker position, in which the striker is in contact with the anvil. The filter cleaning mechanism further includes an actuator moveable between a first actuator position and a second actuator position, in which the actuator is moved closer to the anvil than in the first position, and a first spring biasing the striker toward the anvil.