---
product_id: 74303620
title: "1/2-20UNF Mount 1.5-13mm Capacity Key Drill Chuck for Air Impact Wrench Converter Conversion Tool with Chuck Key and 1/2 inch Socket Square Female Adapter"
brand: "bestgle"
price: "£18.85"
currency: GBP
in_stock: true
reviews_count: 10
category: "Bestgle"
url: https://www.desertcart.co.uk/products/74303620-1-2-20unf-mount-1-5-13mm-capacity-key-drill
store_origin: GB
region: United Kingdom
---

# 1/2-20UNF Mount - universal fit 1.5-13mm Capacity - versatile drill bits Chrome Vanadium Steel - ultra durable 1/2-20UNF Mount 1.5-13mm Capacity Key Drill Chuck for Air Impact Wrench Converter Conversion Tool with Chuck Key and 1/2 inch Socket Square Female Adapter

**Brand:** bestgle
**Price:** £18.85
**Availability:** ✅ In Stock

## Summary

> 🔧 Transform your impact wrench into a precision drill powerhouse—don’t get left behind!

## Quick Answers

- **What is this?** 1/2-20UNF Mount 1.5-13mm Capacity Key Drill Chuck for Air Impact Wrench Converter Conversion Tool with Chuck Key and 1/2 inch Socket Square Female Adapter by bestgle
- **How much does it cost?** £18.85 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/74303620-1-2-20unf-mount-1-5-13mm-capacity-key-drill)

## Best For

- bestgle enthusiasts

## Why This Product

- Trusted bestgle brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Complete Conversion Kit:** Includes chuck key and 1/2" square female socket adapter—ready to upgrade your toolkit instantly.
- • **Universal 1/2-20UNF Mount:** Seamlessly converts your impact wrench into a powerhouse drill—no extra tools needed.
- • **Classic Keyed 3-Jaw Design:** Secure grip on twist and step drill bits ensures zero wobble and precision every time.
- • **Versatile 1.5-13mm Capacity:** Holds a wide range of drill bits from delicate 1.5mm to heavy-duty 13mm for every project.
- • **Premium Chrome Vanadium Steel:** Engineered for maximum strength and impact resistance to keep you drilling without fail.

## Overview

This 1/2-20UNF mount drill chuck, crafted from premium chrome vanadium steel, offers a robust 1.5-13mm capacity to securely hold a wide range of drill bits. Designed for impact wrenches, it includes a 1/2" square female socket adapter and chuck key for easy conversion, delivering durable, wobble-free performance for professional and DIY projects alike.

## Description

Bestgle 1.5-13mm Capacity 1/2-20UNF Mount Impact Drill Chuck with 1/2" Square Female Socket AdapterHeavy duty design, special quenching treated key parts increases durability, strong impact resistance.For use 1/2-inch impact wrench, 3/8-inch chuck allows you to lock and release bits to help keep you on task on the job. Classic keyed 3-jaw design securely holds a wide range of twist drills and step drill bits with 1/16"-1/2" shank1/2" Square female socket adapter can easily transform power impact wrench to a drill.Please Note: The chuck can NOT be used counterclockwise!Specification:Material: Chrome Vanadium SteelCapacity: 1.5-13mmMount: 1/2-20UNFPackage Included:1 × Drill Chuck1 × 1/2" Square Female Socket Adapter1 × Chuck Key

Review: Great replacement or modification piece - Not sure what to say but this worked for my needs. I modified an old radial arm saw into horizontal drill and this piece worked perfect for my need. Solid component and included everything described. No wobble and great value for the money.
Review: I now have a hammer drill with a lot of torque just what I wanted it - This is just what I needed to convert my impact gun into a drill.

## Features

- Made of premium chrome vanadium steel, strong and durable in use
- Mount: 1/2-20UNF, Capacity range:1.5-13mm, use on impact drills and electric power driver
- Come with 1/2" Square Female Socket Adapter, easy to transform power impact wrench to a drill
- Classic keyed 3-jaw design securely holds a wide range of twist drills and step drill bits with 1/16"-1/2" shank
- Please Note: The chuck can NOT be used counterclockwise!!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07F1Z81GZ |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #37,640 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #20 in Power Drill Chucks |
| Capacity | 13 Millimeters |
| Customer Reviews | 4.2 4.2 out of 5 stars (676) |
| Cutting Diameter | 13 Millimeters |
| Date First Available | June 26, 2018 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 14.4 ounces |
| Manufacturer | Bestgle |
| Package Dimensions | 4.57 x 2.44 x 2.13 inches |
| Size | Drill Chuck |
| Style | 1.5-13mm Key |
| Thread Size | 1/2-20UNF |
| UPC | 603935140508 |

## Product Details

- **Brand:** Bestgle
- **Compatible Devices:** Drilling Machine
- **Item Diameter:** 13 Millimeters
- **Item Weight:** 0.41 Kilograms
- **Material:** Chromium Vanadium Steel

## Images

![1/2-20UNF Mount 1.5-13mm Capacity Key Drill Chuck for Air Impact Wrench Converter Conversion Tool with Chuck Key and 1/2 inch Socket Square Female Adapter - Image 1](https://m.media-amazon.com/images/I/61T1iEIBWZL.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: What's the warranty length on bestgle 1.5-13mm capacity 1/2-20unf mount impact drill chuck with 1/2" square female socket adapter?**
A: I used it once and the adapter striped out so I wasn’t happy

**Q: Which size do I buy for a 3/8 impact dewalt wrench**
A: 3/8

**Q: Can this be use on the bosch bulldog?**
A: This adapter is not the same I bought for my application. I bought a 1/4" quick disconnect from impact guns to be used with a 1/2 chuck adapter. This one seems to have a slip and lock SDS adapter. If your power tool don't have this adapter, most likely should not be used as it will be damaged by improper usage.

**Q: What is the diameter of the shaft? I want to use this for a flex shaft rotary tool with a 3/16" chuck**
A: This is only to use for sds plus systems

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great replacement or modification piece
*by A***R on January 14, 2026*

Not sure what to say but this worked for my needs. I modified an old radial arm saw into horizontal drill and this piece worked perfect for my need. Solid component and included everything described. No wobble and great value for the money.

### ⭐⭐⭐⭐⭐ I now have a hammer drill with a lot of torque just what I wanted it
*by J***A on February 19, 2026*

This is just what I needed to convert my impact gun into a drill.

### ⭐⭐⭐⭐ 2nd one in 2 years
*by K***D on June 21, 2025*

It was good, buying another one. Bought one in 11/2023 lasted till this past week. It worked pretty good for the price. Using this one a heavy duty Ryobi impact battery powered drill, tighten the chuck would give me some problems sometimes. It finally gave up and fell apart, due to the harsh impact vibrations. For the price I’m not mad. For occasional use, for a year and a half use, I’m investing my money in a second one with this seller. At least I know what I’m getting

## Frequently Bought Together

- Bestgle 1/2-20UNF Mount 1.5-13mm Capacity Key Drill Chuck for Air Impact Wrench Converter Conversion Tool with Chuck Key and 1/2 inch Socket Square Female Adapter
- 2PCS 1/2 inch Square Drive to 1/4 inch Hex Female Socket Adapter Converter Chuck Adapter for Impact Air and Electric Wrench
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**Shop now:** [https://www.desertcart.co.uk/products/74303620-1-2-20unf-mount-1-5-13mm-capacity-key-drill](https://www.desertcart.co.uk/products/74303620-1-2-20unf-mount-1-5-13mm-capacity-key-drill)

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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-05-18*