---
product_id: 230719629
title: "TEKTON 1/2 Inch Drive x 3 Inch Impact Extension | SIA21103"
brand: "tekton"
price: "VT8957"
currency: VUV
in_stock: true
url: https://www.desertcart.vu/products/230719629-tekton-1-2-inch-drive-x-3-inch-impact-extension
store_origin: VU
region: Vanuatu
---

# 3 Inch length for hard-to-reach spots 1/2 Inch Drive for universal socket fit 6140 Cr-V steel with corrosion-resistant finish TEKTON 1/2 Inch Drive x 3 Inch Impact Extension | SIA21103

**Brand:** tekton
**Price:** VT8957
**Availability:** ✅ In Stock

## Summary

> 🔧 Reach further, torque harder, last longer — the extension pros trust!

## Quick Answers

- **What is this?** TEKTON 1/2 Inch Drive x 3 Inch Impact Extension | SIA21103 by tekton
- **How much does it cost?** VT8957 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/230719629-tekton-1-2-inch-drive-x-3-inch-impact-extension)

## Best For

- tekton enthusiasts

## Why This Product

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

## Key Features

- • **Built to Endure:** Crafted from premium 6140 Chrome Vanadium steel with a manganese phosphate finish for unmatched durability and corrosion resistance.
- • **Secure Socket Grip:** Spring-loaded detent ball ensures your sockets stay locked—no more dropped or lost tools on the job.
- • **Lock & Load Confidence:** Through-hole drive end locks onto your impact driver’s tang, guaranteeing a secure, wobble-free connection every time.
- • **Unlock Hidden Fasteners:** Extend your reach effortlessly into tight, obstructed spaces with a precise 3-inch extension.
- • **Impact-Ready Performance:** Specifically engineered for impact drivers, delivering the torque you need to break loose stubborn fasteners.

## Overview

The TEKTON 1/2 Inch Drive x 3 Inch Impact Extension (SIA21103) is a precision-engineered tool accessory designed to extend your impact driver’s reach into tight or obstructed spaces. Made from heat-treated 6140 Chrome Vanadium steel with a corrosion-resistant manganese phosphate finish, it offers superior strength and durability. Featuring a spring-loaded detent ball and a through-hole locking mechanism, it securely holds sockets in place, preventing drops and ensuring reliable torque transfer for tough fasteners.

## Description

The TEKTON 1/2 Inch Drive x 3 Inch Impact Extension reaches past obstructions or into tight, narrow spaces and delivers the torque needed to break loose stubborn fasteners. A spring-loaded detent ball securely latches onto sockets, preventing them from being dropped or left stuck on fasteners. The through-hole in the drive end locks onto the tang of impact drivers. Made from premium 6140 Cr-V steel, it is precisely heat treated for superior strength and protected by a corrosion-resistant manganese phosphate finish.

## Features

- Engineered for use with impact drivers
- Adds length to access hard-to-reach fasteners
- Spring-loaded detent ball securely latches onto sockets, preventing them from being dropped
- Through-hole in drive end locks onto drive tang
- Made of high-performing 6140 Cr-V steel with a protective manganese phosphate finish

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | TEKTON |
| Part Number | SIA21103 |
| Product Dimensions | 7.62 x 2.54 x 2.54 cm; 140.61 g |
| Item model number | SIA21103 |
| Size | 1/2 Inch Drive x 3 Inch |
| Finish | Corrosion-resistant Manganese,Phosphate Finish |
| Material | Chrome Vanadium Steel |
| Item Package Quantity | 1 |
| Number of Pieces | 1 |
| Compatible fastener range | 0.5 inches |
| Included Components | (1) TEKTON 1/2 Inch Drive x 3 Inch Impact Extension | SIA21103 |
| Batteries Required? | No |
| Item Weight | 141 g |

## Product Details

- **Brand:** TEKTON
- **Item length:** 3 Inches
- **Material:** Chrome Vanadium Steel
- **Finish type:** Corrosion-resistant Manganese,Phosphate Finish
- **Number of pieces:** 1

## Images

![TEKTON 1/2 Inch Drive x 3 Inch Impact Extension | SIA21103 - Image 1](https://m.media-amazon.com/images/I/61RnTErrsfL.jpg)
![TEKTON 1/2 Inch Drive x 3 Inch Impact Extension | SIA21103 - Image 2](https://m.media-amazon.com/images/I/61PLW34mODL.jpg)
![TEKTON 1/2 Inch Drive x 3 Inch Impact Extension | SIA21103 - Image 3](https://m.media-amazon.com/images/I/61c3jD4V+-L.jpg)
![TEKTON 1/2 Inch Drive x 3 Inch Impact Extension | SIA21103 - Image 4](https://m.media-amazon.com/images/I/619ptUtWq0L.jpg)
![TEKTON 1/2 Inch Drive x 3 Inch Impact Extension | SIA21103 - Image 5](https://m.media-amazon.com/images/I/615kATlsvcL.jpg)

## Available Options

This product comes in different **Size Name** options.

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**Shop now:** [https://www.desertcart.vu/products/230719629-tekton-1-2-inch-drive-x-3-inch-impact-extension](https://www.desertcart.vu/products/230719629-tekton-1-2-inch-drive-x-3-inch-impact-extension)

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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-05-02*