---
publication_id: "OT-2026-000001791"
title: "Extension tool"
published_at: "2026-09-15T19:08:41.912197Z"
canonical_url: "https://opentechnical.org/p/OT-2026-000001791"
categories:
  - "robotics-automation/robot-architectures"
keywords:
  - "b25j18/025"
  - "b25j18/025"
  - "b25j18/06"
  - "b25j18/06"
  - "b25j9/065"
  - "b25j9/065"
---

# Extension tool

## Abstract

Extension tools and methods of inserting extension tools within components are provided. For example, an extension tool has a proximal end and a distal end and comprises a plurality of sequentially arranged links moveable relative to one another and a support member defining the distal end and including a first wheel disposed at the distal end and a second wheel spaced apart from the first wheel. The extension tool may comprises a plurality of windows defined in the plurality of sequentially arranged links. The windows are defined periodically along the plurality of sequentially arranged links such that a periodicity of the widows corresponds to a periodicity of a plurality of features of the component.