---
product_id: 22559505
title: "Stanley Proto J7111 3/8\" Square Ext, 7/16\" Hex"
brand: "proto"
price: "Bs.654"
currency: BOB
in_stock: true
url: https://www.desertcart.bo/products/22559505-stanley-proto-j7111-3-8-square-ext-7-16-hex
store_origin: BO
region: Bolivia
---

# Size stamped for quick ID Ball detent secure fit Forged steel durability Stanley Proto J7111 3/8" Square Ext, 7/16" Hex

**Brand:** proto
**Price:** Bs.654
**Availability:** ✅ In Stock

## Summary

> 🔧 Elevate your toolkit with precision-crafted power!

## Quick Answers

- **What is this?** Stanley Proto J7111 3/8" Square Ext, 7/16" Hex by proto
- **How much does it cost?** Bs.654 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.bo](https://www.desertcart.bo/products/22559505-stanley-proto-j7111-3-8-square-ext-7-16-hex)

## Best For

- proto enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last:** Crafted from premium forged alloy steel for unmatched strength and longevity.
- • **Precision Fit:** Ball detent mechanism ensures a secure, wobble-free connection every time.
- • **Impact Caution:** Designed specifically for hand-powered use—engineered precision without impact wear.
- • **Made in the USA:** Proudly manufactured domestically, guaranteeing quality and reliability.
- • **Instant Identification:** Size clearly stamped on the tool, eliminating guesswork and saving time on the job.

## Overview

The Stanley Proto J7111 is a 3/8-inch square extension with a 7/16-inch hex shank, forged from durable alloy steel and finished with a brushed surface. Featuring a ball detent for secure bit retention and size stamping for quick identification, this USA-made tool is optimized for hand-powered applications, delivering reliable performance for professional-grade projects.

## Description

Stanley J7111 Proto 3/8-inch Square Extension 7/16-inch Hex Made of forged steel. Size stamped on tool for easy identification. Ball detent. Not for use on impact applications.

## Features

- Made of forged steel
- Size stamped on tool for easy identification
- Ball detent
- Not for use on impact applications
- Made in USA

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Stanley Proto |
| Item Length | 0.44 Inches |
| Material | Alloy Steel |
| Finish Type | Brushed |
| Number of Pieces | 1 |
| Drive Bit Shank Style | Hex |
| UPC | 662679330231 |
| Global Trade Identification Number | 00662679330231 |
| Bit Compatibilities | 3/8 inch square, 7/16 inch hex |
| Manufacturer | Stanley Proto |
| Part Number | J7111 |
| Item Weight | 2.08 ounces |
| Item model number | J7111 |
| Size | One Size |
| Color | Multi |
| Style | Classic |
| Finish | Brushed |
| Pattern | Solid |
| Shape | Rectangular |
| Power Source | Hand Powered |
| Item Package Quantity | 1 |
| Head Style | Fixed Square |
| Number of Handles | 1 |
| Measurement System | Inch |
| Compatible Fastener Range | 0.375 inches |
| Included Components | 1 Proto Branded Tool |
| Batteries Required? | No |
| Warranty Description | Manufacturer |

## Product Details

- **Brand:** Stanley Proto
- **Item Length:** 0.44 Inches
- **Material:** Alloy Steel
- **Finish Type:** Brushed
- **Number of Pieces:** 1

## Images

![Stanley Proto J7111 3/8" Square Ext, 7/16" Hex - Image 1](https://m.media-amazon.com/images/I/51zoVf20ajL.jpg)

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.bo/products/22559505-stanley-proto-j7111-3-8-square-ext-7-16-hex](https://www.desertcart.bo/products/22559505-stanley-proto-j7111-3-8-square-ext-7-16-hex)

---

*Product available on Desertcart Bolivia*
*Store origin: BO*
*Last updated: 2026-01-29*