An apparatus for surface finishing includes a robot and an end effector. The end effector includes a compliance wrist having an axis of movement and coupled to the robot and a grinder tool coupled to the compliance wrist. The robot is configured to controllably position the end effector in three-dimensional space. The compliance wrist is configured to bias the grinder tool to a biased position relative to the robot and enable the grinder tool to move relative to the robot in response to an external force acting upon the grinder tool.

Apparatus for sharpening a cutting tool. In some embodiments, a tool sharpener includes an abrasive medium having an abrasive surface. A stationary tool support guide provides a guide surface that supports a side of the tool during presentation of a cutting edge of the tool against the abrasive surface. A rotatable edge guide has a roller member with a curvilinearly extending outer surface. The roller member is rotatable about an edge guide roller axis to engage, via rolling contact, the cutting edge during the presentation of the cutting edge against the abrasive surface.

A power tool includes a housing, a power output element for outputting power, a motor for driving the power output element to output power, and a surface light source device for providing illumination. The surface light source device is mounted on the housing and the surface light source device includes a light exit surface allowing the surface light source device to emit light.

The disclosure is directed at a method and apparatus for cleaning a surface having multiple protruding studs. The apparatus includes a top plate portion and a bottom plate portion along with a drive assembly which assists in moving the bottom plate portion with respect to the top plate portion. The drive assembly also translates rotational forces applied by a rotary tool to linear forces which are then applied to the bottom plate portion to clean the surface.

A method for protecting a user of a power tool from the effects of a suddenly occurring imbalance, and to a power tool having a disk-shaped tool for carrying out the method. The power tool has at least one acceleration sensor which is configured to detect vibrations which occur during the operation of the power tool. The vibration values determined can be evaluated and compared with specified limit values, wherein the power tool can be switched off if the vibration values exceed a corresponding limit value. By switching off the power tool, which can be achieved in various ways, the power tool affords optimum user protection against the effects of a suddenly occurring imbalance that may occur, for example, in the event of a defective tool of the power tool.

A power tool having at least one front handle and a tool, wherein the tool can be cooled with a cooling liquid during the operation of the power tool. The power tool has a regulating unit for providing the cooling liquid, wherein the regulating unit has a valve for setting a quantity of cooling liquid and is integrated on the front handle.

A grinder includes a motor including an output shaft, a housing accommodating the motor, a switch, a brake member movable back and forth between a rear braking position and a front brake release position, a switch lever movable between an initial position and a depressed position, a sliding member slidable between a first position to move the brake member to the brake release position and a second position to move the brake member to the braking position to turn on the switch at the first position and turn off the switch at the second position, and a link member rotatable between a first rotational position to move the sliding member to the first position and a second rotational position to move the sliding member to the second position.

A power tool may include: a motor; a power transmission mechanism connected to the motor; a housing that houses the motor and the power transmission mechanism; a tip tool holder connected to the power transmission mechanism and holding a tip tool; and a cover covering at least a part of the tip tool. The cover may include: a fixed cover portion fixed to the housing; a movable cover portion movable with respect to the fixed cover portion; and an operation member mechanically connected to the movable cover portion and configured to move the movable cover portion with respect to the fixed cover portion.

Reciprocating tool accessories are presented including: a damping handle assembly; and a surface contact assembly coupled with the damping handle assembly along a distal end and the reciprocating tool along a proximal end. In some embodiments, the damping handle assembly includes: a grip portion, the grip portion defining a housing, where the grip portion includes, a reciprocal connector subassembly at least partially contained within the housing; and a contact roller portion releasably coupled with the grip portion, where the contact roller portion includes, at least one horizontal contact roller coupled with and aligned along the grip portion, and at least one vertical contact roller coupled with and extending from the grip portion along a grip portion end. In some embodiments, the grip portion further includes a contoured surface.

A tool hanging system including a first tool having a first mount receiving portion and a second tool having a second mount receiving portion. A first mounting attachment is engaged with the first mount receiving portion and a second mounting attachment engaged with the second mount receiving portion. The tool hanging system further includes a wall panel. The first mounting attachment can hang on the wall panel so that the first tool is hung on the wall panel and the second mounting attachment can hang on the wall panel so that the second tool is hung on the wall panel.