---
product_id: 1510192
title: "JacobsK4 Chuck Key - 3655DD"
brand: "apex"
price: "543 DH"
currency: MAD
in_stock: true
reviews_count: 10
url: https://www.desertcart.ma/products/1510192-jacobsk4-chuck-key-3655dd
store_origin: MA
region: Morocco
---

# 3/8" Pilot Size Self-Ejecting Mechanism Soft Steel Handle JacobsK4 Chuck Key - 3655DD

**Brand:** apex
**Price:** 543 DH
**Availability:** ✅ In Stock

## Summary

> 🔩 Unlock Your Potential with Precision!

## Quick Answers

- **What is this?** JacobsK4 Chuck Key - 3655DD by apex
- **How much does it cost?** 543 DH with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ma](https://www.desertcart.ma/products/1510192-jacobsk4-chuck-key-3655dd)

## Best For

- apex enthusiasts

## Why This Product

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

## Key Features

- • **Safety First:** Soft steel handles reduce fracture risks under load.
- • **Ergonomic Design:** Nickel thumb grip for enhanced leverage and comfort.
- • **Effortless Operation:** Spring-loaded ejectors ensure easy key disengagement.
- • **Compact & Lightweight:** Weighs only 0.4 ounces for easy handling and storage.
- • **Durability Guaranteed:** One-year warranty against defects in materials or workmanship.

## Overview

The Jacobs 3655 K4 Thumb Handle Chuck Key is designed for Jacobs Series 36, 16N, and 18N keyed chucks, featuring a 3/8-inch pilot size. Its ergonomic nickel thumb grip enhances user comfort and leverage, while the soft steel handle minimizes fracture risks. The self-ejecting mechanism ensures effortless disengagement after use, making it a reliable tool for professionals. Backed by a one-year warranty, this lightweight chuck key is a must-have for any toolkit.

## Description

JacobsK4 Chuck Key - 3655DD

## Features

- Nickel Thumb Grip Styles Increase Leverage and User Comfort
- Soft Steel Handles Limit the Potential for Dangerous Fracturing Under Excessive Load
- Self-Ejecting Models with Spring-Loaded Ejectors Ensure Key Disengagement After Tightening
- Never Apply Extensions, Pliers, Wrenches or 'Cheaters' of Any Kind to Chuck Key Handles
- Do Not Subject Chuck Key Handles to Hammer or Other Impact Blows

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Jacobs Chuck |
| UPC | 095456036550 |
| Part Number | 3655DD |
| Item Weight | 0.4 ounces |
| Product Dimensions | 5.2 x 2.2 x 1.1 inches |
| Item model number | 3655DD |
| Is Discontinued By Manufacturer | No |
| Size | 3/8-Inch Pilot-Size |
| Power Source | Hand Powered |
| Item Package Quantity | 1 |
| Number Of Pieces | 1 |
| Number of Handles | 1 |
| Batteries Included? | No |
| Batteries Required? | No |
| Warranty Description | Jacobs chucks, chuck keys, tool holders, work holders, and accessories, manufactured or distributed by The Jacobs Chuck Manufacturing Company, are warranted to be free from defects in materials or workmanship for one year from the date of purchase. The warranty is limited to repair or replacement of the defective product or to a full refund of its purchase price |

## Images

![JacobsK4 Chuck Key - 3655DD - Image 1](https://m.media-amazon.com/images/I/61ELrcaxUxL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Just what I needed
  

*by C***A on Reviewed in the United States on April 21, 2024*

Bought a Jacobs chuck without a key, got this and it works perfectly.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Can’t go wrong with Jacob’s brand.
  

*by B***Y on Reviewed in the United States on September 13, 2021*

I use this tool everyday at work. And over 15 years i have had to buy three due to wear. Last time I got 2 extra as gifts to coworkers so they don’t have to barrow mine anymore !

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Exactly as described
  

*by G***L on Reviewed in the United States on October 19, 2022*

Hurray, it fits!

---

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**Shop now:** [https://www.desertcart.ma/products/1510192-jacobsk4-chuck-key-3655dd](https://www.desertcart.ma/products/1510192-jacobsk4-chuck-key-3655dd)

---

*Product available on Desertcart Morocco*
*Store origin: MA*
*Last updated: 2026-03-03*