---
publication_id: "OT-2026-000001809"
title: "Power tool attachment part"
published_at: "2026-09-15T19:08:48.175715Z"
canonical_url: "https://opentechnical.org/p/OT-2026-000001809"
categories:
  - "tools-tooling/clamping-tools"
keywords:
  - "b25b21/002"
  - "b25b23/1425"
  - "b25b23/1425"
  - "b25b23/147"
  - "b25b23/147"
  - "b25b13/481"
---

# Power tool attachment part

## Abstract

A power tool attachment part for a power tool, comprising: an elongate housing including an upper housing part and a lower housing part interconnected with the upper housing part. An input gear is configured to be connected to an output shaft of a power wrench, which input gear is arranged at a first end of the housing. An output gear has an output interface. The output gear is arranged at a second end of the housing. A first intermediate gear is arranged inside the housing and configured to transmit torque of the input gear to the output gear. The first intermediate gear is rotationally mounted on a first intermediate gear shaft. A torque sensor is configured to measure radial forces acting on the first intermediate gear shaft to thereby obtain a measure of the torque at the output gear.