---
publication_id: "OT-2026-000001113"
title: "Electric work machine and screwing tool"
published_at: "2026-09-15T19:03:53.315775Z"
canonical_url: "https://opentechnical.org/p/OT-2026-000001113"
categories:
  - "tools-tooling/clamping-tools"
keywords:
  - "b25b23/18"
  - "b25b23/18"
  - "b25b23/18"
  - "b25b21/00"
  - "b25b21/00"
  - "b25b21/00"
---

# Electric work machine and screwing tool

## Abstract

An intended illumination area is illuminated with light. An electric work machine includes a motor including a rotor rotatable about a rotation axis extending in a front-rear direction, an output unit located frontward from the motor and operable under a rotational force from the rotor, a light emitter, and an optical member including at least one light receiver that receives light from the light emitter and a light guide surrounding at least a part of the output unit to allow light from the at least one light receiver to travel through the light guide. The light guide has a rear surface having at least one slit, and a front surface to allow emission of light traveling through the light guide and reflected at the at least one slit.