---
product_id: 44370469
title: "8784 B1 Zyklop Bit Adaptor 3/8in Square Drive to 1/4in Hex Bits"
brand: "wera"
price: "€ 46.19"
currency: EUR
in_stock: true
url: https://www.desertcart.fi/products/44370469-8784-b1-zyklop-bit-adaptor-3-8in-square-drive-to
store_origin: FI
region: Finland
---

# 3/8in square drive for max torque 1/4in hex bit compatibility lightweight 0.04kg for effortless handling 8784 B1 Zyklop Bit Adaptor 3/8in Square Drive to 1/4in Hex Bits

**Brand:** wera
**Price:** € 46.19
**Availability:** ✅ In Stock

## Summary

> 🛠️ Upgrade your toolkit with the ultimate bit adaptor – don’t get left behind!

## Quick Answers

- **What is this?** 8784 B1 Zyklop Bit Adaptor 3/8in Square Drive to 1/4in Hex Bits by wera
- **How much does it cost?** € 46.19 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/44370469-8784-b1-zyklop-bit-adaptor-3-8in-square-drive-to)

## Best For

- wera enthusiasts

## Why This Product

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

## Key Features

- • **Compact & Lightweight:** At just 0.04kg and 20.3cm length, it’s designed for easy maneuverability
- • **Seamless Power Transfer:** 3/8in square drive ensures optimal torque delivery for demanding tasks
- • **Trusted Brand Reliability:** From Wera Tools, a name synonymous with professional-grade quality
- • **Precision Engineered Build:** Crafted with a durable blend and brushed finish for long-lasting performance
- • **Universal Bit Compatibility:** Fits all standard 1/4in hex bits, expanding your tool versatility

## Overview

The WERA 8784 B1 Zyklop Bit Adaptor converts a 3/8in square drive to a 1/4in hex bit interface, delivering professional-grade torque transfer in a compact, lightweight design. Engineered with durable materials and a brushed finish, it ensures reliable performance and compatibility with a wide range of hex bits, making it an essential accessory for any serious craftsman or manager who values efficiency and quality.

## Description

8784 B1 Zyklop Bit Adaptor 3/8in Square Drive to 1/4in Hex Bits

## Features

- 8784 B1 BIT ADAPTOR. 3/8" ADAPTOR
- 8784 B1 BIT ADAPTOR. 3/8" ADAPTOR
- 8784 B1 BIT ADAPTOR. 3/8" ADAPTOR
- 8784 B1 BIT ADAPTOR. 3/8" ADAPTOR
- 8784 B1 BIT ADAPTOR. 3/8" ADAPTOR

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Wera |
| Item Length | 20.3 Centimeters |
| Material | Blend |
| Finish Type | Brushed |
| Number of Pieces | 1 |
| Drive Bit Shank Style | Universal |
| Bit Compatibilities | 1/4" Hex (9.525 mm) |
| Manufacturer | Wera Tools |
| Item Package Dimensions L x W x H | 4.29 x 1.57 x 0.94 inches |
| Package Weight | 0.05 Kilograms |
| Item Dimensions  LxWxH | 4.38 x 1.74 x 0.79 inches |
| Item Weight | 0.04 Kilograms |
| Brand Name | Wera |
| Model Name | 05003590001 |
| Color | Multi |
| Suggested Users | Unisex-Adult |
| Number of Items | 1 |
| Part Number | 05003590001 |
| Style | Classic |
| Included Components | 8784 B1 BIT ADAPTOR. 3/8" ADAPTOR |
| Size | One Size |

## Product Details

- **Brand:** Wera
- **Item Length:** 20.3 Centimeters
- **Material:** Blend
- **Finish Type:** Brushed
- **Number of Pieces:** 1

## Images

![8784 B1 Zyklop Bit Adaptor 3/8in Square Drive to 1/4in Hex Bits - Image 1](https://m.media-amazon.com/images/I/712XmB92hvL.jpg)
![8784 B1 Zyklop Bit Adaptor 3/8in Square Drive to 1/4in Hex Bits - Image 2](https://m.media-amazon.com/images/I/71OpugUu8LL.jpg)
![8784 B1 Zyklop Bit Adaptor 3/8in Square Drive to 1/4in Hex Bits - Image 3](https://m.media-amazon.com/images/I/91dEbEchlnL.jpg)

## Questions & Answers

**Q: So $30 and no keeper pin and o-ring?**
A: This adaptor is an excellent tool for use with the interchangeable Wera bits( or others if need be). 
 The Wera bits lock into the adaptor. As far as no “pin and o-ring” I am unsure of your question. Are you worried it is going to fall off of your ratchet or extension? I am a professional Field Service Technician , and I own and use several different Wera sets and products daily. These tools are second to none for quality , except for their ratchets. The ratchets fail quickly , but the bits , sockets and Allen keys are superior. 
  I have not used this adaptor with any bits , other than the Wera brand , so I cannot say if the other brand bits will pull out. The adaptor stays put on a ratchet or extension. 
Hope this helps

## Frequently Bought Together

- WERA 8784 B1 Zyklop Bit Adaptor 3/8in Square Drive to 1/4in Hex Bits
- 8000 B SPEED RATCHET 3/8" RATCHET 3/8" DRIVE
- 781 B/A 3/8" ADAPTOR

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**Shop now:** [https://www.desertcart.fi/products/44370469-8784-b1-zyklop-bit-adaptor-3-8in-square-drive-to](https://www.desertcart.fi/products/44370469-8784-b1-zyklop-bit-adaptor-3-8in-square-drive-to)

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-03-01*