---
product_id: 7795179
title: "SUNEX TOOLS 2637, 1/2\" Drive Master Impact Hex Driver Set, 20Piece, SAE/Metric, 1/4\" - 3/4\", 6mm - 19mm, Cr-Mo Steel, Dual Size Markings, Heavy Duty Storage Case, Meets ANSI Standards"
brand: "sunex tools"
price: "¥44552"
currency: JPY
in_stock: true
url: https://www.desertcart.jp/products/7795179-sunex-tools-2637-1-2-drive-master-impact-hex-driver
store_origin: JP
region: Japan
---

# 20-piece SAE & Metric range Cr-Mo steel for high torque impact Heavy-duty storage case SUNEX TOOLS 2637, 1/2" Drive Master Impact Hex Driver Set, 20Piece, SAE/Metric, 1/4" - 3/4", 6mm - 19mm, Cr-Mo Steel, Dual Size Markings, Heavy Duty Storage Case, Meets ANSI Standards

**Brand:** sunex tools
**Price:** ¥44552
**Availability:** ✅ In Stock

## Summary

> 🛠️ Master every job with impact-ready precision!

## Quick Answers

- **What is this?** SUNEX TOOLS 2637, 1/2" Drive Master Impact Hex Driver Set, 20Piece, SAE/Metric, 1/4" - 3/4", 6mm - 19mm, Cr-Mo Steel, Dual Size Markings, Heavy Duty Storage Case, Meets ANSI Standards by sunex tools
- **How much does it cost?** ¥44552 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/7795179-sunex-tools-2637-1-2-drive-master-impact-hex-driver)

## Best For

- sunex tools enthusiasts

## Why This Product

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

## Key Features

- • **Built to Endure:** Solid one-piece construction eliminates weak points, delivering durability that keeps up with your busiest projects.
- • **Precision That Lasts:** Dual laser-etched and roll-stamped size markings ensure permanent, easy identification—no more guesswork on the job.
- • **Organized & Ready to Go:** Heavy-duty blow-molded case offers secure, portable storage—perfect for professionals on the move.
- • **Complete SAE & Metric Coverage:** 20-piece set spans 1/4" to 3/4" and 6mm to 19mm, so you’re always ready for any fastener challenge.
- • **Unmatched Strength & Flexibility:** Crafted from premium Chrome Molybdenum steel to withstand the toughest torque demands without fail.

## Overview

The SUNEX TOOLS 2637 is a 20-piece 1/2" drive impact hex driver set made from durable Chrome Molybdenum steel, featuring dual SAE and Metric sizes (1/4"-3/4" & 6mm-19mm). With solid one-piece construction, permanent laser-etched markings, and a heavy-duty storage case, it meets ANSI standards and is built for professional-grade torque and longevity.

## Description

SUNEX TOOLS 2637, 1/2" Drive Master Impact Hex Driver Set, 20Piece, SAE/Metric, 1/4" - 3/4", 6mm - 19mm, Cr-Mo Steel, Dual Size Markings, Heavy Duty Storage Case, Meets ANSI Standards

## Features

- CR-MO STEEL: Provides the strength and flexibility to handle high torque impact - tools.SOLID ONE PIECE
- CONSTRUCTION: Eliminates weak points and increases durability.
- DUAL SIZE MARKINGS: Laser etched and roll stamped markings to ensure permanent identification.
- HEAVY DUTY STORAGE CASE: Convenient impact transport and storage.
- MEETS ANSI STANDARDS: All hex drivers are rigorously tested, ensuring peak performance and durability.
- 20 PIECE SET
- SAE: ¼” to ¾”
- METRIC: 6mm to 19mm

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Sunex Tools |
| Item Length | 13.6 Inches |
| Material | Chrome Molybdenum Steel |
| Drive System | Hex |
| Finish Type | Painted |
| Number of Pieces | 1, 17 |
| UPC | 100067034250 732454552513 787721796954 735090324278 613364079799 719918337060 |
| Global Trade Identification Number | 00613364079799 |
| Manufacturer | Sunex International |
| Part Number | 2637 |
| Item Weight | 7.5 pounds |
| Country of Origin | China |
| Item model number | 2637 |
| Is Discontinued By Manufacturer | No |
| Size | SAE & Metric |
| Style | 1/2" Drive Impact Hex Driver Set |
| Finish | Painted |
| Pattern | Drive Socket Set |
| Power Source | No |
| Item Package Quantity | 1 |
| Compatible Fastener Range | 0.75 inches |
| Certification | No |
| Included Components | Sockets and blow molded case |
| Batteries Included? | No |
| Batteries Required? | No |
| Warranty Description | Lifetime |

## Product Details

- **Brand:** Sunex Tools
- **Item Length:** 13.6 Inches
- **Material:** Chrome Molybdenum Steel
- **Drive System:** Hex
- **Finish Type:** Painted

## Images

![SUNEX TOOLS 2637, 1/2" Drive Master Impact Hex Driver Set, 20Piece, SAE/Metric, 1/4" - 3/4", 6mm - 19mm, Cr-Mo Steel, Dual Size Markings, Heavy Duty Storage Case, Meets ANSI Standards - Image 1](https://m.media-amazon.com/images/I/61Yemq4XphL.jpg)

## Available Options

This product comes in different **Pattern Name, Size, Style** options.

## Questions & Answers

**Q: Do these have a warranty?**
A: Lifetime warranty

**Q: manufacture description says 1/2 drive, product description says 3/4 drive witch is it**
A: The 1/2" drive is a 20 piece set, the 3/4" drive is a 17 piece set.

**Q: Product description says that these are sockets.  Manufacturer says that these are hex head.  What are you actually selling here ?**
A: 2637 are hex bits, Allen Wrench bits  - they stick in a hex hole, and work with socket head screws/bolts.  The picture is accurate.
Sizes 1/4"-3/4" and 6mm - 19mm just as described.

**Q: If i purchase the used one, will it still come with the lifetime warranty?**
A: Yes.

## Frequently Bought Together

- SUNEX TOOLS 2637, 1/2" Drive Master Impact Hex Driver Set, 20Piece, SAE/Metric, 1/4" - 3/4", 6mm - 19mm, Cr-Mo Steel, Dual Size Markings, Heavy Duty Storage Case, Meets ANSI Standards
- Sunex 3646, 3/8 Inch Drive Low Profile Impact Hex Driver Set, 16-Piece, SAE/Metric, 1/4 Inch - 3/4 Inch, 6mm - 19mm, Cr-Mo Steel, Dual Size Markings, Heavy Duty Storage Case, Meets ANSI Standards
- Sunex 3569 3/8" Dr. Master Hex Bit Impact Socket Set (84 Piece)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-28*