The tool system includes a body, a driver, and a tool sensing unit. To the body, a tool is attachable. The driver is configured to drive the tool attached to the body. The tool sensing unit is configured to perform identification of a type of the tool attached to the body.

The tool system includes a body, a driver, and a tool sensing unit. To the body, a tool is attachable. The driver is configured to drive the tool attached to the body. The tool sensing unit is configured to perform identification of a type of the tool attached to the body.

An electric working machine includes an attachment portion, a motor, and a controller. Multiple types of tip tools are alternatively attached to the attachment portion. The motor drives the tip tool attached to the attachment portion. The controller has first start control and second start control. The controller is configured to execute the first start control so as to determine the type of the tip tool when not having tool type information, and configured to execute the second start control when having the tool type information.

An electric working machine includes an attachment portion, a motor, and a controller. Multiple types of tip tools are alternatively attached to the attachment portion. The motor drives the tip tool attached to the attachment portion. The controller has first start control and second start control. The controller is configured to execute the first start control so as to determine the type of the tip tool when not having tool type information, and configured to execute the second start control when having the tool type information.

A portable device is disclosed for drilling a hole through a plate and into a wooden tie and/or inserting a lag screw into the hole in the plate and into the wooden tie. The portable device may include a handle and a removable drill with a rechargeable battery that provides power to the portable device. In various embodiments, the portable device may include a gear ratio and gear reduction system configured to allow a user to change speed and torque settings for the portable device independent from the battery-powered drill. In some embodiments, the portable device may include a quick connect/disconnect component configured to enable the portable device to be used as a tie drill device or a lag screw inserter device by interchangeably connecting either a drill bit or a lag screw socket to the portable device.

A rotary tool allows easy attachment and detachment of the rotary tool stand. A driver drill includes a motor, a housing accommodating the motor, a tip tool holder rotatable by the motor, and a connecting member held on the housing. The connecting member has at least one connecting hole through which a pole is placeable. The pole extends from a base included in a rotary tool stand. The base is placeable on a workpiece.

A convertible power tool that can operate in first and second configurations. The tool includes a base unit configured to receive at one time either a first module or a second module. The different modules provide for different levels of functionality. The first module includes one or more components that provide for a first level of functionality. The second module includes one or more components that provide for an advanced second level of functionality. Each of the base unit and first and second modules may include interfaces that provide for physical engagement as well as power/data engagement. In use, one of the first and second modules is connected to the base unit to provide for the desired functionality incorporated with the tool. The tool may also be reconfigured by removing the attached module and replacing it with the other module thus providing for a different functionality level.

A convertible power tool that can operate in first and second configurations. The tool includes a base unit configured to receive at one time either a first module or a second module. The different modules provide for different levels of functionality. The first module includes one or more components that provide for a first level of functionality. The second module includes one or more components that provide for an advanced second level of functionality. Each of the base unit and first and second modules may include interfaces that provide for physical engagement as well as power/data engagement. In use, one of the first and second modules is connected to the base unit to provide for the desired functionality incorporated with the tool. The tool may also be reconfigured by removing the attached module and replacing it with the other module thus providing for a different functionality level.

A power tool includes a power mechanism including a drive shaft; an oscillating mechanism; an airflow element connected to the drive shaft; a heat conducting portion supported on the drive shaft, where the airflow element is disposed on the heat conducting portion. The oscillating mechanism includes a support assembly sleeved on the drive shaft and an oscillating member. Heat generated by the oscillating mechanism is conducted to the heat conducting portion through the drive shaft, the heat conducting portion has a thermal conductivity greater than or equal to 50 W/m•°C, and a ratio of an axial distance L1 of a portion of the heat conducting portion in contact with the drive shaft to a distance L2 of a thermally conductive portion of the drive shaft between the heat conducting portion and the support assembly is greater than or equal to 0.1 and less than or equal to 5.

A work tool and transmission system thereof. The transmission system comprises: a first shaft (250) and a second shaft (350), a near end (351) of the second shaft having a first mating part; a shaft coupler (600), a far-side part (620) of the shaft coupler having a second mating part matched in shape to the first mating part; and a coupling mechanism capable of directly or indirectly applying a coupling force to at least one of the first shaft, the second shaft and the shaft coupler; when the far-side part of the shaft coupler is aligned with the near end of the second shaft in the circumferential direction, the coupling force forces the first mating part to engage with the second mating part, so that the shaft coupler transmits rotational movement of the first shaft to the second shaft. The work tool comprises: a transmission system; a motive power head transmission-connected to the first shaft (250); and a working head transmission-connected to the second shaft (350).