Which type of screws is this bit suitable for?

This bit is designed for hexagon socket screws with a size of 8 mm.

What is the advantage of the Hex-Plus profile?

Hex-Plus provides larger contact surfaces in the screw head. This reduces the notching effect and prevents rounding out the screw head.

Which bit holders are compatible with this bit?

The bit features a standard 1/4" hexagon drive suitable for bit holders according to DIN ISO 1173-D 6.3.

What does the tough-viscous Z design mean?

Wera Z-bits are made of a tough-viscous alloy that prevents premature tip breakage during universal screwdriving applications.

Is this bit VDE-insulated for electrical work?

No, this bit is not VDE-tested and is not rated for work on live electrical components [NL: Technische Specificaties].

WERA 840/1 Z Hex-Plus hexagon bit, 8 x 25 mm - 05056335001

Name: WERA 840/1 Z Hex-Plus hexagon bit, 8 x 25 mm - 05056335001
Brand: WERA
SKU: 87010089
Price: 5.52 EUR
Availability: InStock

Supplier number: WERA 05056335001 | EAN 4013288012692

5.52 tax incl.

€4.56 excl. VAT (incl. all environmental contributions)

On stock - immediately available | we have 6 products in stock.

Ordered before 20:00 - delivered tomorrow 06/10/2026
Shipping costs €11.99 VAT included | Free shipping for orders over a total amount of 125 euros
Delivery by DHL

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Reliable screwdriving with Wera bits

Practical benefits

Extended screw head life: The specialized geometry creates larger contact surfaces so you avoid rounding out hexagonal socket screw heads.
Tough design absorbs peaks: Built for demanding applications, the ductile core absorbs high torque loads to ensure you prevent premature bit breakage.
Standard universal drive fit: Featuring a standard 1/4" hexagon drive, you can seamlessly fit this bit into any conventional bit holder.

In a nutshell

The right choise for

With the Wera 840/1 z Hex-Plus hexagon bit, you drive 8 mm socket head screws with complete control and dependable precision. The specialized Hex-Plus profile creates larger contact surfaces inside the screw head, significantly reducing notch effect and preventing rounded fastener heads. Built with a tough-viscous core, this bit effortlessly absorbs high torque peaks to prevent premature tip breakage during demanding fastening jobs in wood and metal. Featuring a compact 25 mm length and a standard 1/4" hexagon drive according to din iso 1173-D 6.3, it seamlessly fits into any conventional bit holder.

Product information FAQ

€5.52

In stock - tax incl.

Key features according to our expert

Length: 25 mm
Blade thickness: Not applicable
Type of drive profile (bit): Hexagon
Connection size (bit): 1/4"
VDE approved: No
Bit profile: HEX 8 mm
Drive profile size (bit): 8 mm
Product Range: Wera Hex-Plus

Scope of delivery

840/1 Z bits, 8 x 25 mm

Product description

Tough Wera bits for hexagonal socket screws, for universal use. Hex-Plus offers larger contact surfaces in the screw head. The notch effect is reduced to a minimum and the destruction of the screw head is almost eliminated. 1/4" hexagonal, suitable for holding tools as per DIN ISO 1173-D 6.3.

For hexagonal socket head screws
Hex-Plus allows socket head screws to live longer
Tough for hard materials
1/4" hexagon drive (Wera connecting series 1)

Application

Hexagon socket screws

Drive

1/4" hexagon, suitable for DIN ISO 1173-D 6.3 bit holders

Design

Hex-Plus, tough, for universal use

Features and benefits

Hexagon socket screws are a problem, because the contact surfaces that transfer the force of the tool to the screw are very narrow. The consequence: the head of the screw can be damaged, usually rounding out the recess. Hex-Plus tools have larger contact surfaces to prevent this, driving from the flats of the recess, rather than the corners. Good to know: Hex-Plus tools fit into every standard hexagon socket screw!
Tough Wera bits prevent the tip from breaking prematurely. Z-bits usually are the bit for universal screwdriving applications.

All Features

Length: 25 mm
Blade thickness: Not applicable
Type of drive profile (bit): Hexagon
Connection size (bit): 1/4"
Vde approved: No
Bit profile: HEX 8 mm
Drive profile size (bit): 8 mm
Product range: Wera Hex-Plus

Brand WERA
87010089
EAN 4013288012692
Supplier number WERA 05056335001

Frequently asked questions about this product

Answered by specialists

Which type of screws is this bit suitable for?: This bit is designed for hexagon socket screws with a size of 8 mm.
What is the advantage of the Hex-Plus profile?: Hex-Plus provides larger contact surfaces in the screw head. This reduces the notching effect and prevents rounding out the screw head.
Which bit holders are compatible with this bit?: The bit features a standard 1/4" hexagon drive suitable for bit holders according to DIN ISO 1173-D 6.3.
What does the tough-viscous Z design mean?: Wera Z-bits are made of a tough-viscous alloy that prevents premature tip breakage during universal screwdriving applications.
Is this bit VDE-insulated for electrical work?: No, this bit is not VDE-tested and is not rated for work on live electrical components [NL: Technische Specificaties].

Questions about this product?

Our product specialists are happy to help with any questions about this range. Call, email or chat with us!

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