---
product_id: 266420905
title: "Klein Tools 66031 3-in-1 Slotted Impact Socket, 12-Point Deep Sockets, Coaxial Spring Loaded, 3/4 and 9/16-Inch Hex Sizes, 1/2-Inch Drive"
brand: "klein tools"
price: "€ 94.26"
currency: EUR
in_stock: true
reviews_count: 12
category: "Klein Tools"
url: https://www.desertcart.it/products/266420905-klein-tools-66031-3-in-1-slotted-impact-socket-12
store_origin: IT
region: Italy
---

# 3-in-1 dual hex sizes 12-point high-torque design Coaxial spring-loaded adjustment Klein Tools 66031 3-in-1 Slotted Impact Socket, 12-Point Deep Sockets, Coaxial Spring Loaded, 3/4 and 9/16-Inch Hex Sizes, 1/2-Inch Drive

**Brand:** klein tools
**Price:** € 94.26
**Availability:** ✅ In Stock

## Summary

> 🛠️ One Socket, Infinite Impact – Upgrade Your Toolbox Game!

## Quick Answers

- **What is this?** Klein Tools 66031 3-in-1 Slotted Impact Socket, 12-Point Deep Sockets, Coaxial Spring Loaded, 3/4 and 9/16-Inch Hex Sizes, 1/2-Inch Drive by klein tools
- **How much does it cost?** € 94.26 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/266420905-klein-tools-66031-3-in-1-slotted-impact-socket-12)

## Best For

- klein tools enthusiasts

## Why This Product

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

## Key Features

- • **Built for Impact:** Durable alloy steel construction designed to withstand heavy-duty impact driver use.
- • **Dual Hex Powerhouse:** Switch seamlessly between 3/4" and 9/16" hex sizes without missing a beat.
- • **Hands-Free Adjustment:** Innovative coaxial spring-loaded mechanism lets you work faster with one tool.
- • **Precision 12-Point Grip:** Engineered for maximum torque and perfect alignment on square fasteners every time.
- • **Trusted Legacy Craftsmanship:** Backed by 160+ years of American family-owned quality and professional-grade reliability.

## Overview

The Klein Tools 66031 3-in-1 Slotted Impact Socket combines two common hex sizes (3/4" and 9/16") in a single, high-torque 12-point design with a patented coaxial spring-loaded adjustment for hands-free size switching. Crafted from durable alloy steel and engineered for impact driver use, this tool streamlines hot-line clamp installation and removal with precision and reliability, backed by over 160 years of Klein’s professional-grade craftsmanship.

## Description

The 3-in-1 Slotted Impact Socket features an alignment slot to tighten and loosen most hot-line clamps. The single socket offers hands-free adjustment between the sizes needed for pole hardware installation and removal. Includes 3/4-Inch and 9/16-Inch hex sizes in a high torque, 12-Point design. Engineered to be used with an impact driver. For more than 160 years, Klein Tools has manufactured premium-quality, professional-grade hand tools that deliver the performance, durability and precision needed to get the job done right. Our family of engineers, workers and craftsman continue to put six generations of expertise into every tool we create by using only the highest quality materials, superior workmanship, and keeping manufacturing as close to home as we can. Klein isn't just the name of our company, it's also our family name. And since we're an American company that's family-owned and family-run, you know you can count on us to be here tomorrow. Klein Tools doesn't just make great products, we make great products that stand up to the demands of the professionals who use them every day ... Since 1857.

Review: EXCELLENT! - EXCELLENT!
Review: Works great - Great tool!

## Features

- Impact socket features an alignment slot to tighten and loosen most hot-line clamps
- Single-ended impact socket with hands-free adjustment between socket sizes
- Two common socket sizes (3/4-Inch and 9/16-Inch hex) in one tool
- High-torque, 12-Point design is easier to position and works with square fasteners
- Patent pending design

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08R6FL5P8 |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #15,155 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #23 in Square Drive Sockets |
| Brand | KLEIN TOOLS |
| Color | Multi |
| Compatible Fastener Range | 0.75 inches |
| Customer Reviews | 4.8 4.8 out of 5 stars (934) |
| Date First Available | December 22, 2020 |
| Drive Bit Shank Style | Standard |
| Drive System | Hex |
| Finish | Painted |
| Finish Type | Painted |
| Global Trade Identification Number | 00092644650871 |
| Included Components | 3-in-1 Slotted Impact Socket, 12-Point, 3/4 and 9/16-Inch |
| Is Discontinued By Manufacturer | No |
| Item Length | 3.1 Inches |
| Item Package Quantity | 1 |
| Item Weight | 0.8 ounces |
| Item model number | 66031 |
| Manufacturer | Klein Tools |
| Material | Alloy Steel |
| Number of Pieces | 12 |
| Part Number | 66031 |
| Pattern | Solid |
| Power Source | hand_powered |
| Shape | Rectangular |
| Size | One Size |
| Special Features | Slotted Socket, Hands-Free Adjustment |
| Style | 3/4-Inch and 9/16-Inch Spring Loaded Socket |
| UPC | 092644650871 |

## Product Details

- **Brand:** KLEIN TOOLS
- **Finish Type:** Painted
- **Item Length:** 3.1 Inches
- **Material:** Alloy Steel
- **Number of Pieces:** 12

## Images

![Klein Tools 66031 3-in-1 Slotted Impact Socket, 12-Point Deep Sockets, Coaxial Spring Loaded, 3/4 and 9/16-Inch Hex Sizes, 1/2-Inch Drive - Image 1](https://m.media-amazon.com/images/I/518tCZzSt+L.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ EXCELLENT!
*by M***A on February 16, 2026*

EXCELLENT!

### ⭐⭐⭐⭐⭐ Works great
*by T***N on October 18, 2025*

Great tool!

### ⭐⭐⭐⭐⭐ Lineman's buddy!
*by J***K on December 30, 2024*

Great socket for linemen. Popped it on a M18 mid torque 1/2 impact and it's never left. It's become my go to socket for day to day distribution line work. Great for shoes, hotline clamps, cutout arms, you name it. Doesn't replace the nut runners or anything used on the 7/16 M18 Utility impact, but works great on a smaller, lighter impact for tasks that require more dexterity. Can't speak about long term durability. It's been in use on my truck for about 3 months with daily mild to moderate use.

## Frequently Bought Together

- Klein Tools 66031 3-in-1 Slotted Impact Socket, 12-Point Deep Sockets, Coaxial Spring Loaded, 3/4 and 9/16-Inch Hex Sizes, 1/2-Inch Drive
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*Product available on Desertcart Italy*
*Store origin: IT*
*Last updated: 2026-03-16*