According to one embodiment, a display device is configured to display a virtual space to overlap a real space. The display device is configured to acquire a position of a fastening location of an article present in the real space, the position of the fastening location being preregistered. The display device is configured to acquire a position of the display device. The display device is configured to set a display position of a first virtual object at a prescribed position with respect to the fastening location when viewed from the display device, the first virtual object including information related to the fastening location. The display device is configured to repeat the acquisition of the position of the display device and the setting of the display position of the first virtual object.

According to one embodiment, a display device is configured to display a virtual space to overlap a real space. The display device is configured to acquire a position of a fastening location of an article present in the real space, the position of the fastening location being preregistered. The display device is configured to acquire a position of the display device. The display device is configured to set a display position of a first virtual object at a prescribed position with respect to the fastening location when viewed from the display device, the first virtual object including information related to the fastening location. The display device is configured to repeat the acquisition of the position of the display device and the setting of the display position of the first virtual object.

A rotating power tool assembly may include a rotating power tool and a torque control accessory. The rotating power tool may include a tag sensor and an electronic torque limiter operably coupled to an electric motor and a spindle. The electronic torque limiter being controllable by control circuitry to adjust a maximum torque output to the spindle. The torque control accessory may include a torque indicator tag and a visible torque value indicia. The torque control accessory being removably attachable to the rotating power tool. The torque indicator tag being configured to output a tag signal that indicates a maximum torque value associated with the torque control accessory for receipt by the tag sensor to control the torque limiter. The visible torque value indicia may also indicate the maximum torque value.

A rotating power tool assembly may include a rotating power tool and a torque control accessory. The rotating power tool may include a tag sensor and an electronic torque limiter operably coupled to an electric motor and a spindle. The electronic torque limiter being controllable by control circuitry to adjust a maximum torque output to the spindle. The torque control accessory may include a torque indicator tag and a visible torque value indicia. The torque control accessory being removably attachable to the rotating power tool. The torque indicator tag being configured to output a tag signal that indicates a maximum torque value associated with the torque control accessory for receipt by the tag sensor to control the torque limiter. The visible torque value indicia may also indicate the maximum torque value.