---
publication_id: "OT-2026-000001055"
title: "Impact wrench"
published_at: "2026-09-15T19:03:48.269875Z"
canonical_url: "https://opentechnical.org/p/OT-2026-000001055"
categories:
  - "tools-tooling/clamping-tools"
keywords:
  - "b25b21/02"
  - "b25b21/02"
  - "b25b21/02"
  - "b25b21/02"
  - "b25b21/02"
  - "b25b21/02"
---

# Impact wrench

## Abstract

An impact wrench (1) with an upper handle assembly (2), a lower working assembly (3) and an intermediate connecting bar (4) connected between the handle assembly (2) and the working assembly (3) and comprising a tubular body (4') with a first end portion (15) coupled with a first coupling seat (16) of the handle assembly (2) and a second end portion (17) coupled with a second coupling seat (18) of the working assembly (3), wherein the first end portion (15) and the first coupling seat (16) both have a non-circular or polygonal or rectangular or square cross-section, orthogonal to the longitudinal direction (14), , so as to make an anti-rotation shape coupling with the interposition of a first damping assembly (24) forming a damping layer between the first end portion (15) and the first coupling seat (16).