Which screw type is this bit designed for?

This bit is designed for size 4 TORQ-SET screws.

What drive connection does this bit have?

It features a standard 1/4" hexagon drive according to DIN ISO 1173-D 6.3.

What is the advantage of the Mplus profile?

The Mplus profile provides stronger flanks for higher breaking torque and a longer service life.

What is the overall length of this bit?

This bit has an overall length of 25 mm.

Is this bit VDE certified?

No, this bit is not VDE certified and not insulated for live electrical work.

WERA 871/1 TORQ-SET Mplus 25 mm bit, 25 mm, 4 x 25 mm - 05066624001

Name: WERA 871/1 TORQ-SET Mplus 25 mm bit, 25 mm, 4 x 25 mm - 05066624001
Brand: WERA
SKU: 02646676
Price: 13.64 EUR
Availability: PreOrder

Supplier number: WERA 05066624001 | EAN 4013288033109

13.64 tax incl.

€11.27 excl. VAT (incl. all environmental contributions)

On order: delivered from 19/10/2026

The minimum purchase order quantity for the product is 10.

Delivery by DHL

✆ Talk to a specialist

Maximum durability with Wera Mplus

Practical benefits

Higher breaking torque resistance: The reinforced Mplus flanks deliver greater strength and protect you against premature bit tip breakage.
Secure fit in fasteners: The precise profile fits snugly into TORQ-SET screws to prevent slipping and head damage during fastening.
Standard hex drive compatibility: The 1/4" hexagon connection ensures you can easily insert this bit into all standard holders.

In a nutshell

The right choise for

With the Wera 871/1 torq-set Mplus bit, you tackle demanding fastening tasks with maximum strength and precision. Tailored for size 4 torq-set screws, this 25 mm bit is ideal for high-torque applications in aerospace, defense, and industrial machinery maintenance. The specialized Mplus profile features reinforced flanks that significantly increase breaking torque resistance and prevent premature bit tip breakage. Its snug engagement fits cleanly into the screw head, effectively stopping cam-out and protecting your fasteners from damage. Featuring a standard 1/4" din iso 1173-D 6.3 hexagon drive, it integrates smoothly into any standard bit holder for efficient daily use.

Product information FAQ

€13.64

tax incl.

Key features according to our expert

Length: 25 mm
Blade thickness: Not applicable
Type of drive profile (bit): Torq-set
Connection size (bit): 1/4"
VDE approved: No
Bit profile: Torq-set 4
Drive profile size (bit): 4 mm

Scope of delivery

871/1 TORQ-SET® Mplus bits, 25 mm, 4 x 25 mm

Product description

High quality bits for TORQ-SET® screws. The stronger flanks - when compared with the conventional TORQ-SET® profile - result in 70% more breaking torque and thereby enhanced durability whilst at the same time providing a perfect fit in the screw head. Tough viscous for universal use. 1/4" hexagon, suitable for holders as per DIN ISO 1173-D 6.3.

For TORQ-SET® screws
Mplus for more breaking torque and longer service life
Tough for hard materials
1/4" hexagon drive (Wera connecting series 1)

Application

TORQ-SET® screws

Drive

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

Design

Mplus for higher breaking torque and longer service life, tough, for universal use

Features and benefits

Wera developed the Mplus profile with stronger flanks compared with tools with a conventional TORQ-SET® profile. This results in approximately 70 % extra torsional strength and greatly extends the service life of Wera Mplus tools.
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): Torq-set
Connection size (bit): 1/4"
Vde approved: No
Bit profile: Torq-set 4
Drive profile size (bit): 4 mm

Brand WERA
02646676
EAN 4013288033109
Supplier number WERA 05066624001

Frequently asked questions about this product

Answered by specialists

Which screw type is this bit designed for?: This bit is designed for size 4 TORQ-SET screws.
What drive connection does this bit have?: It features a standard 1/4" hexagon drive according to DIN ISO 1173-D 6.3.
What is the advantage of the Mplus profile?: The Mplus profile provides stronger flanks for higher breaking torque and a longer service life.
What is the overall length of this bit?: This bit has an overall length of 25 mm.
Is this bit VDE certified?: No, this bit is not VDE certified and not insulated for live electrical work.

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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