HEX extension for screwdriving 300mm – Professional 30 cm adapter for hard-to-reach places
Do you often face the challenge of reaching deep-set screws, tight corners or narrow areas where your standard tool simply fails? The 300mm HEX screwdriver extension (SKU: BITU30) is the ultimate professional tool that every DIYer, installer and professional craftsman needs. This extra-long adapter makes it easy, fast and safe to work where conventional screwdriver bits can't reach.
It is designed with maximum versatility, durability and efficiency in mind. Whether you are assembling furniture, repairing a car, installing a kitchen or performing demanding construction work, this 30 cm extension will become an indispensable part of your toolbox. Forget the frustration of inadequate reach and make your work easier by purchasing this quality adapter today.
Why choose the HEX extension for screwdriving 300mm?
The main advantage of this extension is its exceptional length and universal compatibility. With a length of 300 mm, it provides optimal leverage and reach without losing torque or control over the screwdriving. It is made of high-quality materials that can easily withstand high loads, which means it is suitable for both occasional home use and daily professional use in industry and trade.
Thanks to the standard 1/4" drive, it can be quickly and easily mounted on most rotary tools. This saves you valuable time when changing equipment and significantly increases your productivity on the jobsite.
Key features and technical advantages

Exceptional length of 300 mm: Allows smooth and safe work in extremely difficult to reach, deep and narrow places.
Universal 1/4" drive: The standard 1/4" HEX drive ensures full compatibility with most screwdrivers, drills and hand screwdrivers.
Versatile use: Perfectly suitable for use with hand tools (screwdrivers) or power tools (cordless drills and screwdrivers).
Stable power transmission: Despite its 30 cm length, the extension ensures precise torque transmission without twisting, vibration or loss of power.
Quick and safe change: Easy insertion and secure clamping of attachments (bits) for a faster and smoother workflow.

Advantages of practical use and ergonomics
Using a quality extension significantly affects safety, speed and accuracy when working. When working in narrow spaces, damage to the material around the screw often occurs, as we have to hold the tool at an angle. With the 300mm HEX extension, you will be able to screw at a perfect 90 degree angle, which prevents the bit from slipping and unwanted damage to the screw head or the surrounding area.
In addition, this long extension reduces strain on your arms, shoulders and back. When screwing in low or high places, you do not have to bend or stretch into uncomfortable and body-unfriendly positions. It is the ideal solution for kitchen fitters, car mechanics, carpenters, drywall installers (Knauf) and anyone who values ergonomic and efficient work.
How to use the HEX extension correctly?
Using this adapter is extremely simple and intuitive:

Insert the extension into the head of your drill, cordless screwdriver or hand screwdriver with a 1/4" drive.
Install the desired screwdriver bit (bit) on the other end of the extension according to the type of screw (cross, flat, Torx, Allen, etc.).
Before starting work, make sure that the extension is firmly clamped in the tool head.
Due to its length of 30 cm, we recommend that you stabilize the extension with one hand while screwing (if you are working with a power tool at higher speeds), which will ensure maximum precision and prevent possible tangling.

Product specifications

Category: Screw bits and adapters
Length: 300mm (30cm)
Drive: 1/4" (HEX / hexagon)
Product code (SKU): BITU30
Price: €17.99

Frequently Asked Questions (FAQ) about the product
Is this extension suitable for impact drivers?
The extension is primarily intended for use with hand tools and standard electric or cordless drills and screwdrivers with a 1/4" drive. Caution is recommended for the extremely high torque loads produced by impact drivers.
What bits can I use with this extension?
You can use all standard screwdriver bits and bits with a 1/4" hexagonal (HEX) drive. This includes a wide range of standard bits (Torx, PH, PZ, flat, Allen) currently available on the market.
Does the extension cord twist or bend during operation?
No. The extension is designed and manufactured to maintain a high level of rigidity, strength and stability despite its 300 mm length. This allows for precise and direct power transmission to the screw without unwanted twisting or tangling during operation.


Responsible persons:
XLTOOLS - iRMA Tomasz Matoga Spółka Komandytowa, ul. Królewska 69, 32-447 Siepraw, Poland, biuro@irma.pl (+48) 12 272 88 10
Distributor for Slovenia: Haloorodje.si, Online Sales, Rok Groznik sp, Podturn 42, 8350 Dolenjske Toplice, info@haloorodje.si, +38669731944, Slovenia
Product origin: China

Instructions for using the product:
• Insert the 1/4" extension into the screwdriver or handpiece.
• Insert the appropriate HEX/BIT bit into the front part.
• Before working, check that the attachment is properly engaged.
• When screwing, keep the extension as straight as possible in relation to the screw.
• After finishing the work, remove the attachment and clean the extension. The extension is primarily intended for working in hard-to-reach places and can be used with hand or power tools.

Useful tips for work:
• 300 mm length is particularly useful when screwing into deep holes, corners and hard-to-reach places.
• Before screwing, set the screw in the BIT and screw it in at a lower speed at first.
• Keep the extension as straight as possible while working to reduce the chance of the attachment slipping.
• For longer screws, an extension can make it easier to reach places where a regular screwdriver cannot reach.
• If the attachment does not fit properly, do not use it – check HEX mount compatibility.

Warnings:
• Always stop the tool before changing the attachment.
• Do not use a damaged or twisted extension cord.
• Do not use it for tasks for which it is not intended.
• Use the appropriate speed and pressure when using an electric screwdriver.
• Wear safety glasses when working.

Same summary

The 300 mm HEX screwdriver extension is a practical accessory for users who often find themselves screwing in hard-to-reach places or in deeper holes during home or hobby projects. It is particularly suitable for occasional use in furniture assembly, household repairs or work where better reach and easy bit change are required. For specialized or very demanding work (such as construction work or professional industrial use), the length and general versatility may result in less precision or rigidity compared to shorter or more robust holders. It is crucial that the extension is used in accordance with the tool and the appropriate bit for the screw profile.

Recommendation source: Enaa guides and team experiences.

User view

This type of HEX extension is commonly used by home craftsmen and consumers who want to simplify screwdriving in places where standard bits cannot reach. It is most often useful when assembling or repairing furniture, self-building, household repairs or various DIY projects, where access to screws is sometimes limited by the sides of cabinets, plywood structures or narrow openings. It retains a sense of practicality and flexibility, and by storing it in every basic tool box, it is always at hand for sudden domestic challenges.

Users also appreciate the reliability and range of the XLtools brand, which offers proven solutions for everyday use in these types of tools.

Why buy at Enaa

At Enaa, you can easily find a wide selection of extensions and attachments that meet your actual needs. Clear filtering by tool type and purpose enables quick selection, and professional descriptions are prepared by a team that knows the practical requirements of tool users.

Answers to frequently asked questions

What materials is this HEX extension suitable for?

The HEX extension is particularly suitable for screwdriving in wood and metal, if you use the appropriate attachments and tools; if you choose the right bits, you can also use it for basic work with other materials.

Is this extension cord compatible with all electric screwdrivers?

The extension has a standard hexagonal (HEX) connector that fits most common electric screwdrivers - for specialized or non-standard devices, please check the connector compatibility before purchasing.

How does the length of 300 mm affect practical use?

The 300 mm length allows for screwing into deeper or narrower spaces, but at the same time requires a little more attention to precision, as longer extensions can be more flexible under higher loads.

Can I use different attachment profiles with it?

Yes, the extension allows the use of all bits with the appropriate HEX connection, including flat, cross and special profiles for various screws.

Which users will benefit most from this extension?

It brings the most benefits to home users and those who encounter screwdriving in hard-to-reach places or when building furniture and doing household repairs.

Description updated: April 2026