What drive size does this extension bar have?

It features a 3/8" female square drive for the ratchet and a 3/8" male square drive for the socket.

Is this extension bar suitable for impact wrenches?

No, this extension bar is designed for hand-operated ratchets and sockets.

How are sockets held securely on the extension?

Sockets are retained by a ball locking mechanism on the male square drive.

What material is this extension bar made of?

It is made of chrome-vanadium steel with a matt chrome finish.

GEDORE RED R55100024 extension piece 3/8" 125 mm - 3300218

Name: GEDORE RED R55100024 extension piece 3/8" 125 mm - 3300218
Brand: GEDORE RED
SKU: 02879164
Price: 6.18 EUR
Availability: InStock

Supplier number: GEDORE RED 3300218 | EAN 4060833002189

6.18 tax incl.

€5.11 excl. VAT (incl. all environmental contributions)

On stock - immediately available | we have 1 products in stock.

Ordered before 20:00 - delivered as of 05/10/2026
Shipping costs €11.99 VAT included | Free shipping for orders over a total amount of 125 euros
Delivery by DHL
Delivered from Belgium

✆ Talk to a specialist

Extended reach for hand sockets

Practical benefits

Easy access to depths: With a length of 125 mm, you easily access fasteners situated in deep or confined assembly spaces.
Secure socket retention: The 3/8" square drive features a ball retention mechanism to keep your sockets firmly locked in place.
Durable chrome-vanadium construction: Built by Gedore Red with a matt chrome finish, it withstands wear and provides dependable strength for daily tasks.

In a nutshell

The right choise for

With the Gedore Red R55100024 extension bar, you effortlessly overcome obstacles in tight assembly spaces. Its 125 mm length bridges the gap to deep-seated or recessed nuts and bolts, making it ideal for engine bay repairs and machinery servicing. By extending your reach, it prevents your hands and knuckles from scraping against surrounding components during fastening. The 3/8" female square drive connects directly to your ratchet, while the 3/8" male square drive with a ball retention mechanism keeps your sockets securely in place. Made from durable chrome-vanadium steel with a matt chrome finish, it delivers dependable strength for every manual workshop task.

Product information FAQ

€6.18

In stock - tax incl.

Key features according to our expert

Connection size 1: 3/8"
Connection type 1 (extension): Outer square
Connection type 2 (extension): Internal square
Length: 125 mm
Non-sparking: No
Connection size 2: 3/8"

Product description

Matt chrome-plated
For manually operated sockets
Internal drive square according to DIN 3120 - C 10, ISO 1174, with ball catch slot
Connection square according to DIN 3120 - A 10, ISO 1174, with ball catch slot
Chrome-Vanadium steel

All Features

Connection size 1: 3/8"
Connection type 1 (extension): Outer square
Connection type 2 (extension): Internal square
Length: 125 mm
Non-sparking: No
Connection size 2: 3/8"
Surface area: Matt chrome-plated
Drive square [inch]: 3/8"
Drive square [metric]: 10 mm
Material: chrome vanadium steel
Overall length [mm]: 125 mm

Brand GEDORE RED
02879164
EAN 4060833002189
Supplier number GEDORE RED 3300218

Frequently asked questions about this product

Answered by specialists

What drive size does this extension bar have?: It features a 3/8" female square drive for the ratchet and a 3/8" male square drive for the socket.
What is the total length of the extension bar?: The total length is 125 mm.
Is this extension bar suitable for impact wrenches?: No, this extension bar is designed for hand-operated ratchets and sockets.
How are sockets held securely on the extension?: Sockets are retained by a ball locking mechanism on the male square drive.
What material is this extension bar made of?: It is made of chrome-vanadium steel with a matt chrome finish.