---
publication_id: "OT-2026-000003116"
title: "Snap-in chuck assembly and snap-in tool"
published_at: "2026-09-15T19:32:25.149241Z"
canonical_url: "https://opentechnical.org/p/OT-2026-000003116"
categories:
  - "tools-tooling/clamping-tools"
keywords:
  - "b23b31/1071"
  - "b23b31/1071"
  - "b23b2231/38"
  - "b23b2231/38"
  - "b23b2231/44"
  - "b23b2231/44"
---

# Snap-in chuck assembly and snap-in tool

## Abstract

The elongate rod shaped non-impact and non percussion drilling tool comprises: a non-impact and non-percussion drilling tool or implement formation at an outer end of the shank, a portion of the shank having a polygonal cross section at a location on the shank other than at an inner end of the shank, an annular groove in the shank which is only wide enough to receive a detent to prevent axial movement of the tool when it is received in a snap-in chuck assembly and a spline formation at an inner end of the shank. The chuck assembly includes either a polygonal drive structure in a center bore of the chuck assembly or a rotatable nose collar or an axially movable nose collar whereby a tool received in the center bore is held by friction in the polygonal drive structure or by a rotatable movement or an axial movement of the nose collar.

## 1. Drawings

[0001] Sheet 1.

[0002] Sheet 2.

[0003] Sheet 3.

[0004] Sheet 4.

[0005] Sheet 5.