An apparatus may include a grinder blade for flush cutting concrete, the grinder blade comprising: a distal side that defines a flush cutting plane and a proximal side opposite the distal side, and a locking hub receiver section unitarily formed from the grinder blade at a center portion and extending from the grinder blade a proximal direction to receive a locking hub with a plurality of fasteners disposed proximally to the grinder blade to secure the locking hub against the grinder blade.

A protective element, in particular a cover, for the guard of a disk-shaped tool of an electric power tool, in particular an angle grinder. The protective element has a protective element body that is reversibly attached to the guard in an installed position by clamping the guard between attachment elements and a leaf spring of the protective element body. The invention also relates to a manufacturing method for the protective element and an electric power tool having this protective element.

A work apparatus includes: a housing; a motor support unit designed separately from the housing, the housing being fixed to the motor support unit. A drive motor is designed as an electric motor for driving a tool and is attached to the motor support unit. A receptacle housing designed separately from the motor support unit for receiving at least one battery pack for supplying the drive motor with electrical power is fixed to the housing. The receptacle housing and the motor support unit are designed and arranged relative to each other in such a way that the receptacle housing is able to move relative to the motor support unit in order to reduce, in particular to prevent, direct transmission of inertial forces emanating from the receptacle housing to the motor support unit in the event of an impact load on the work apparatus.

A handheld work apparatus includes: a housing (2); a motor support unit (10) which is separate from the housing (2) and is connected to the housing (2); a drive motor (3) arranged in the housing (2) for driving a tool (5) that rotates about an axis of rotation (8), wherein the drive motor (3) is attached to the motor support unit (10); a protective hood (51), the protective hood (51) at least partially covering the tool (5) and a stop (110) being provided on the protective hood (51). A mating stop (120) is formed on the motor support unit (10), in particular directly, which is provided for operative connection with the stop (110) of the protective hood (51) in order to restrict the pivoting movement of the protective hood (51) to an end position (131).

A handheld work apparatus includes a housing (2). A drive motor (3) is arranged in the housing (2) for driving a tool (2) that rotates about an axis of rotation (8). A protective hood (51) at least partially covers the tool (5). An operating stop (120) is fixed relative to the housing (2) and a counter-body (110) is arranged on the protective hood (51) and corresponds to the operating stop (120). The operating stop (120) is designed as an energy absorption element which, in the event of an excess load acting on the operating stop (120) due to the counter-body (110), moves away from the counter-body (110) in order to absorb kinetic energy of the protective hood (51) and to protect components of the counter-body (110). The work apparatus (1) includes an end stop (101) for restricting the rotational movement of the protective hood (51) to an end position (25).

A power tool may include a body arranged to support a rotatable work tool. The body may include a front handle and a rear handle. The front handle may be arranged between the rotatable work tool and the rear handle. The power tool may further include a liquid dispensing system for adding a controlled amount of liquid to the rotatable work tool. The liquid dispensing system may include a valve for adjusting a flow of liquid in the liquid dispensing system. The valve may include a control member arranged on a portion of the body separate from the front handle but adjacent to the front handle such that the control member is operable by a hand gripping the front handle.

A method for braking a power tool (10) is provided, the power tool (10) being a battery-operated or mains-operated power tool and including a brake chopper, and at least pert of the electrical energy that is released when the power tool (10) is braked being fed back to a power supply device (14) or a DC link of the power tool (10).

A method for braking a power tool (10) is provided, the power tool (10) being a battery-operated or mains-operated power tool and including a brake chopper, and at least pert of the electrical energy that is released when the power tool (10) is braked being fed back to a power supply device (14) or a DC link of the power tool (10).

A cutting tool includes a trunk assembly, an electric motor, a second housing for accommodating the electric motor, an output shaft for mounting a cutting piece, a transmission assembly connected between a motor shaft and the output shaft, and a third housing for accommodating at least part of the transmission assembly. In a process of the cutting piece cutting a workpiece, the third housing has a first contact surface and a second contact surface with the workpiece; when the first contact surface or the second contact surface is in contact with the workpiece, the cutting piece has a maximum cutting depth; and the angle between the first contact surface and the second contact surface is greater than or equal to 50 and less than or equal to 85, and the maximum cutting depth is greater than or equal to 20 mm.

A cutting tool includes a trunk assembly, an electric motor, a second housing for accommodating the electric motor, an output shaft for mounting a cutting piece, a transmission assembly connected between a motor shaft and the output shaft, and a third housing for accommodating at least part of the transmission assembly. In a process of the cutting piece cutting a workpiece, the third housing has a first contact surface and a second contact surface with the workpiece; when the first contact surface or the second contact surface is in contact with the workpiece, the cutting piece has a maximum cutting depth; and the angle between the first contact surface and the second contact surface is greater than or equal to 50 and less than or equal to 85, and the maximum cutting depth is greater than or equal to 20 mm.