---
product_id: 555167457
title: "Crescent Drill Bit Extension | 5.5\" x 7/16\" | CDEX-5525"
brand: "crescent"
price: "AR$75418"
currency: ARS
in_stock: true
reviews_count: 8
url: https://www.desertcart.com.ar/products/555167457-crescent-drill-bit-extension-5-5-x-7-16-cdex
store_origin: AR
region: Argentina
---

# 5.5-inch extension length 7/16-inch hex shank size One-piece durable construction Crescent Drill Bit Extension | 5.5" x 7/16" | CDEX-5525

**Brand:** crescent
**Price:** AR$75418
**Availability:** ✅ In Stock

## Summary

> 🔩 Extend your reach, not your wait time!

## Quick Answers

- **What is this?** Crescent Drill Bit Extension | 5.5" x 7/16" | CDEX-5525 by crescent
- **How much does it cost?** AR$75418 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/555167457-crescent-drill-bit-extension-5-5-x-7-16-cdex)

## Best For

- crescent enthusiasts

## Why This Product

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

## Key Features

- • **Swift Accessory Swaps:** Quick release mechanism lets you switch bits in seconds—stay in the flow, no downtime.
- • **Upgrade Your Workflow:** Enhance efficiency and tackle complex fastening tasks with ease—don’t get left behind.
- • **Seamless Compatibility:** Fits standard 7/16-inch hex shanks, making it the perfect add-on for your existing toolkit.
- • **Built to Last, Built for Power:** One-piece design concentrates force for maximum durability and longer tool life.
- • **Extended Reach, Elevated Precision:** Unlock hard-to-reach spots with a 5.5-inch extension for flawless drilling every time.

## Overview

The Crescent Drill Bit Extension (5.5" x 7/16", model CDEX-5525) offers enhanced accessibility for fastening and drilling tasks. Featuring a quick-release system for fast bit changes and a robust one-piece construction, it delivers durability and efficient force transfer for prolonged tool life.

## Description

The Crescent Drill Bit Extensions provide increased accessibility in fastening and drilling applications and features a quick release function used to effortlessly switch between accessories and sizes. Its 1/4" hex shank provide optimal performance in both impact drivers and drills.

## Features

- Provides increased accessibility in fastening and drilling applications
- Quick release allows for effortless switching between accessories and sizes
- One piece construction for best concentration of force to provide a longer lifetime

## Images

![Crescent Drill Bit Extension | 5.5" x 7/16" | CDEX-5525 - Image 1](https://m.media-amazon.com/images/I/61vcvzHBoOL.jpg)
![Crescent Drill Bit Extension | 5.5" x 7/16" | CDEX-5525 - Image 2](https://m.media-amazon.com/images/I/61oPw8M4uoL.jpg)
![Crescent Drill Bit Extension | 5.5" x 7/16" | CDEX-5525 - Image 3](https://m.media-amazon.com/images/I/71vM3HicrHL.jpg)
![Crescent Drill Bit Extension | 5.5" x 7/16" | CDEX-5525 - Image 4](https://m.media-amazon.com/images/I/81c-jm7btqL.jpg)
![Crescent Drill Bit Extension | 5.5" x 7/16" | CDEX-5525 - Image 5](https://m.media-amazon.com/images/I/61fpl2dqTGL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great for extending hole saws.
*by D***N on December 18, 2024*

I bought this because I needed to cut some deep holes with hole saws that has 3/8" arbors. It works great and runs true.

### ⭐⭐⭐⭐⭐ Just the extension i needed!
*by C***S on August 21, 2024*

This extension is great! Just long enough to use in those tight places where the hole saw needs a couple of inches to go through a block or stud! I used it today with a 4" hole saw and it performed great!

### ⭐⭐⭐⭐ False Amazon product description
*by R***N on May 21, 2025*

This is a 3/8" quick release extension with a 3/8" male quick release shank. The statement in the Amazon product description "The Crescent Drill Bit Extensions provide increased accessibility in fastening and drilling applications and features a quick release function used to effortlessly switch between accessories and sizes. Its 1/4" hex shank provide optimal performance in both impact drivers and drills" is completely false. It will not fit in 3/8" impact drivers or bit extensions.

## Frequently Bought Together

- Crescent Drill Bit Extension | 5.5" x 7/16" | CDEX-5525
- Milwaukee 2808-20 M18 FUEL HOLE HAWG Brushless Lithium-Ion Cordless Right Angle Drill with 7/16 in. QUIK-LOK (Tool Only)
- Milwaukee 48-25-5120 1-3/8-Inch Switchblade Selfeed Bit

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**Shop now:** [https://www.desertcart.com.ar/products/555167457-crescent-drill-bit-extension-5-5-x-7-16-cdex](https://www.desertcart.com.ar/products/555167457-crescent-drill-bit-extension-5-5-x-7-16-cdex)

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*Product available on Desertcart Argentina*
*Store origin: AR*
*Last updated: 2026-02-22*