A work machine unit includes: a support member assembled to an end effector connection part of an operating machine; a work machine part assembled to one end of the support member; and a linear guide disposed at another end of the support member across its connection to the end effector connection part from the support member, arranged in parallel to an axial direction of the work machine part, and configured to abut against a work object or its peripheral structural object. Further, the linear guide is passed through a through-hole formed in the support member, and the support member is configured to move in the axial direction of the work machine part as guided by the linear guide.

A power tool communication system including an external device including a first controller configured to transmit, via wireless communication to a power tool, configuration data including a work light duration parameter value and a work light brightness parameter value. The power tool includes a housing, a brushless direct current (DC) motor, a trigger, a work light, a wireless communication circuit configured to wirelessly communicate with the external device to receive the configuration data, and a second controller configured to control a work light duration of the work light based on the work light duration parameter value, and control a work light brightness of the work light based on the work light brightness parameter value.

A power tool communication system including an external device including a first controller configured to transmit, via wireless communication to a power tool, configuration data including a work light duration parameter value and a work light brightness parameter value. The power tool includes a housing, a brushless direct current (DC) motor, a trigger, a work light, a wireless communication circuit configured to wirelessly communicate with the external device to receive the configuration data, and a second controller configured to control a work light duration of the work light based on the work light duration parameter value, and control a work light brightness of the work light based on the work light brightness parameter value.

A device and method using the electromechanical properties of piezoelectric materials to generate and deliver electrical power to a high speed electrically powered rotatable shaft. The device has a stationary module that is connected to an electrical source; and has a rotatable module, which is mechanically connected to the electrically powered rotatable shaft. The rotatable module rotates relative to the stationary module. When the stationary module is electrically energized, the stationary piezoelectric component expands and causes the rotatable piezoelectric component to compress. When the rotatable piezoelectric component compresses, it generates electrical power transferred to the electrically powered rotatable shaft. Thus, electrical energy can be delivered to the electrically powered rotatable shaft without a direct electrical connection. The present invention is particularly useful in applications requiring large diameter through-hole dimensions.

A device and method using the electromechanical properties of piezoelectric materials to generate and deliver electrical power to a high speed electrically powered rotatable shaft. The device has a stationary module that is connected to an electrical source; and has a rotatable module, which is mechanically connected to the electrically powered rotatable shaft. The rotatable module rotates relative to the stationary module. When the stationary module is electrically energized, the stationary piezoelectric component expands and causes the rotatable piezoelectric component to compress. When the rotatable piezoelectric component compresses, it generates electrical power transferred to the electrically powered rotatable shaft. Thus, electrical energy can be delivered to the electrically powered rotatable shaft without a direct electrical connection. The present invention is particularly useful in applications requiring large diameter through-hole dimensions.

A power tool communication system including an external device including a first controller configured to transmit, via wireless communication to a power tool, configuration data including a work light duration parameter value and a work light brightness parameter value. The power tool includes a housing, a brushless direct current (DC) motor, a trigger, a work light, a wireless communication circuit configured to wirelessly communicate with the external device to receive the configuration data, and a second controller configured to control a work light duration of the work light based on the work light duration parameter value, and control a work light brightness of the work light based on the work light brightness parameter value.

A power tool communication system including an external device including a first controller configured to transmit, via wireless communication to a power tool, configuration data including a work light duration parameter value and a work light brightness parameter value. The power tool includes a housing, a brushless direct current (DC) motor, a trigger, a work light, a wireless communication circuit configured to wirelessly communicate with the external device to receive the configuration data, and a second controller configured to control a work light duration of the work light based on the work light duration parameter value, and control a work light brightness of the work light based on the work light brightness parameter value.

A safety cover and support assembly has safety cover with a first flange and a second flange depending from a top plate, the first flange and second flange shaped to receive and engage geometrical elements of a drill motor. A vacuum extractor extends from the second flange with an inlet aperture positioned adjacent a drill foot of the drill motor. A support attachment extends from the top plate. A support is engaged in the support attachment.

A safety cover and support assembly has safety cover with a first flange and a second flange depending from a top plate, the first flange and second flange shaped to receive and engage geometrical elements of a drill motor. A vacuum extractor extends from the second flange with an inlet aperture positioned adjacent a drill foot of the drill motor. A support attachment extends from the top plate. A support is engaged in the support attachment.

A power tool communication system including an external device including a first controller configured to transmit, via wireless communication to a power tool, configuration data including a work light duration parameter value and a work light brightness parameter value. The power tool includes a housing, a brushless direct current (DC) motor, a trigger, a work light, a wireless communication circuit configured to wirelessly communicate with the external device to receive the configuration data, and a second controller configured to control a work light duration of the work light based on the work light duration parameter value, and control a work light brightness of the work light based on the work light brightness parameter value.