---
product_id: 17001249
title: "Stanley Proto J5118 3/8\" Drive Torque Adapter 9/16\""
brand: "proto"
price: "166.54 DT"
currency: TND
in_stock: true
reviews_count: 13
category: "Proto"
url: https://www.desertcart.tn/products/17001249-stanley-proto-j5118-3-8-drive-torque-adapter-9-16
store_origin: TN
region: Tunisia
---

# 2" center-to-center precision Heat-treated alloy steel strength Proudly made in USA Stanley Proto J5118 3/8" Drive Torque Adapter 9/16"

**Brand:** proto
**Price:** 166.54 DT
**Availability:** ✅ In Stock

## Summary

> 🛠️ Torque with precision, power, and pride — the Proto way!

## Quick Answers

- **What is this?** Stanley Proto J5118 3/8" Drive Torque Adapter 9/16" by proto
- **How much does it cost?** 166.54 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/17001249-stanley-proto-j5118-3-8-drive-torque-adapter-9-16)

## 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

- • **Cost-Effective Performance:** Professional-grade torque adapter at a fraction of the price—don’t miss out on this tool essential.
- • **Compact & Accessible Design:** Engineered box end thickness offers maximum access to tight, hard-to-reach fasteners.
- • **Precision Torque Calibration:** Exact 2" center-to-center dimension simplifies torque calculations for flawless results.
- • **Trusted American Craftsmanship:** Manufactured in the USA, combining quality and performance you can count on.
- • **Durable Alloy Steel Construction:** Special heat-treated alloy steel ensures long-lasting strength and reliability on every job.

## Overview

The Stanley Proto J5118 3/8" Drive Torque Adapter 9/16" is a precision-engineered tool accessory designed for accurate torque calibration with a fixed 2" center-to-center dimension. Crafted from heat-treated alloy steel for enhanced durability, it features a compact box end for easy access to tight fasteners. Proudly made in the USA, this adapter delivers professional-grade performance at an unbeatable value, making it a must-have for any serious toolkit.

## Description

Product Description PROTO J5118 3/8" Drive Torque Adapter 9/16" From the Manufacturer Proto torque adapters are designed with a center-to-center dimension of 2". This means that the distance from the center of the square drive of the mating torque wrench to the center of the fasteners is exactly 2". This constant dimension serves to simplify the process of calculating the torque applied. The box end wall thickness is specially engineered to provide strength while still allowing ample room for access to reach difficult fasteners.

Review: fantastic tool great price - I got this for my husband through desertcart as there was no place local to buy one in stock and when they were in stock they were 40 + dollars. this little gem was under 20 and works like a charm. this is the exact same tool, right down to the part number and it does exactly what it claims to do. it's made to extend the reach of a torque wrench in tight spaces and this one did the trick. it did not come packaged, just loose in the shipping box. don't know why that was, but it's perfect. my husband was able to complete the repair in no time as this was at the front door in less than 3 days. what a great deal. I would highly recommend this product and desertcart for having the best prices and fastest service. the local place offered to order it for us...in about 2 weeks.
Review: Creative design - Makes tightening hard to get at bolts a breeze. Used to tighten intake manifold bolts with torque wrench.

## Features

- Designed for easy torque calibrations.
- Adapters measure 2" from the center of the square drive to the center of the adapter opening.
- Special heat-treated alloy steel helps to increase strength and durability.
- Made in USA

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B001HWEAEC |
| Best Sellers Rank | #452,720 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #671 in Torque Wrenches |
| Brand | Proto |
| Brand Name | Proto |
| Color | Multi |
| Customer Reviews | 4.7 out of 5 stars 240 Reviews |
| End Style | Box End |
| Finish Types | Brushed |
| Global Trade Identification Number | 00662679164591 |
| Head Style | Fixed Square |
| Included Components | Product & Instructions Guide |
| Is Non Sparking | No |
| Is Racheting | No |
| Item Length | 2.81 Inches |
| Item Package Quantity | 1 |
| Item Torque | 16 Newton Meters |
| Item Type Name | 3/8" Drive Torque Adapter 9/16" |
| Manufacturer | STANLEY-PROTO * |
| Manufacturer Part Number | J5118 |
| Manufacturer Warranty Description | Manufacturer |
| Material | Alloy Steel |
| Material Type | Alloy Steel |
| Measurement Standard | SAE (Inch) |
| Model Number | J5118 |
| Operation Mode | Electric |
| Package Quantity | 1 |
| Point Count | 12 |
| Set Name | 3/8" Drive Torque Adapter Set |
| UPC | 662679164591 |
| Unit Count | 1.0 Count |
| Wrench Length Style | Standard |

## Product Details

- **Brand:** Proto
- **Color:** Multi
- **Item Length:** 2.81 Inches
- **Item Package Quantity:** 1
- **Material:** Alloy Steel

## Images

![Stanley Proto J5118 3/8" Drive Torque Adapter 9/16" - Image 1](https://m.media-amazon.com/images/I/61mKOpYztgL.jpg)

## Questions & Answers

**Q: Where can I obtain one of these in 1/2"?**
A: 1/2” size or 1/2” drive?

**Q: Is there a 1/2" version?**
A: per the PROTO website, they are only manufactured in 1/2" drive

**Q: What is the width of the wrench 9/16 end. I have a shovelhead cylinder bolts to tighten and sockets wont fit, too tight between fins?**
A: This works great on my 78 FXS Shovelhead Lowrider.

**Q: Would it be possible to purchase a (3/8 drive torque adapter 1/4-inch) without having to buy the entire torque adapter set?**
A: Probably. I purchased the single 3/8’s drive x9/16 one. So I would imagine you could fine that one without purchasing the entire kit.

## Customer Reviews

### ⭐⭐⭐⭐⭐ fantastic tool great price
*by A***R on November 27, 2012*

I got this for my husband through Amazon as there was no place local to buy one in stock and when they were in stock they were 40 + dollars. this little gem was under 20 and works like a charm. this is the exact same tool, right down to the part number and it does exactly what it claims to do. it's made to extend the reach of a torque wrench in tight spaces and this one did the trick. it did not come packaged, just loose in the shipping box. don't know why that was, but it's perfect. my husband was able to complete the repair in no time as this was at the front door in less than 3 days. what a great deal. I would highly recommend this product and Amazon for having the best prices and fastest service. the local place offered to order it for us...in about 2 weeks.

### ⭐⭐⭐⭐⭐ Creative design
*by L***N on November 4, 2025*

Makes tightening hard to get at bolts a breeze. Used to tighten intake manifold bolts with torque wrench.

### ⭐⭐⭐⭐⭐ Made well
*by B***R on November 23, 2024*

Very handy in tight places, Very good quality

## Frequently Bought Together

- Stanley Proto J5118 3/8" Drive Torque Adapter 9/16"
- Stanley Proto J5120 3/8" Drive Torque Adapter 5/8"
- 3/8" Drive Torque Adapter 1/2"

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-07-20*