---
publication_id: "OT-2026-000001607"
title: "Engaging structure for hand tool"
published_at: "2026-09-15T19:06:58.122765Z"
canonical_url: "https://opentechnical.org/p/OT-2026-000001607"
categories:
  - "tools-tooling/clamping-tools"
keywords:
  - "b25b13/065"
  - "b25b13/065"
  - "b25b13/065"
  - "b25b13/04"
  - "b25b13/04"
  - "b25b13/04"
---

# Engaging structure for hand tool

## Abstract

An engaging structure for a hand tool includes a main body. The main body has a mounting element. The mounting element includes multiple first recessed portions, multiple second recessed portions, and multiple locking sides. Each of the first recessed portions is provided with multiple grooves. Each of the first recessed portions is provided with at least three grooves. Each of the second recessed portions is provided with a first curved face. Each of the locking sides is arranged between two of the second recessed portions. Each of the first recessed portions is formed on one of the locking sides. The locking sides construct a first hexagon. The first hexagon has a center provided with a central axis. The first hexagon has six side faces. Each of the six side faces coincide with each of the locking sides.