Which screw type is this bit designed for?

This bit is engineered for Torq-Set screws in size 1.

What drive size does this bit have?

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

What is the benefit of the Wera Mplus profile?

The Mplus design strengthens the flanks to provide higher breaking torque and a longer service life.

What is the total length of this bit?

The total length of this bit is 25 mm.

Is this bit VDE-certified for live electrical work?

No, this bit is not VDE-certified and is not insulated.

WERA 871/1 TORQ-SET Mplus 25 mm bit, 25 mm, 1 x 25 mm - 05066619001

Name: WERA 871/1 TORQ-SET Mplus 25 mm bit, 25 mm, 1 x 25 mm - 05066619001
Brand: WERA
SKU: 02646673
Price: 13.64 EUR
Availability: PreOrder

Supplier number: WERA 05066619001 | EAN 4013288041562

13.64 tax incl.

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

On order: delivered from 29/10/2026

The minimum purchase order quantity for the product is 10.

Delivery by DHL

✆ Talk to a specialist

Enhanced breaking torque for demanding fastenings

Practical benefits

Stronger Wera Mplus flanks: You obtain 70% more breaking torque and longer service life compared to conventional profiles due to reinforced flanks.
Tough viscous construction: The tough viscous design prevents premature bit tip breakage, ensuring dependable performance in hard joint materials.
Standard hex drive fit: You easily fit the 1/4" hexagon drive into all standard bit holders conforming to DIN ISO 1173-D 6.3.

In a nutshell

The right choise for

With the Wera 871/1 Torq-Set Mplus bit, you reliably transfer high torque to size 1 Torq-Set fasteners. Thanks to the reinforced Mplus flank geometry, you benefit from 70% more breaking torque and extended service life compared to conventional profiles. The tough viscous design prevents premature bit tip breakage during demanding fastening tasks in hard joint materials. Featuring a standard 1/4" hexagon drive conforming to din iso 1173-D 6.3 and a compact length of 25 mm, this bit fits seamlessly into standard bit holders.

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 1
Drive profile size (bit): 1 mm

Scope of delivery

871/1 TORQ-SET® Mplus bits, 25 mm, 1 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 1
Drive profile size (bit): 1 mm

Brand WERA
02646673
EAN 4013288041562
Supplier number WERA 05066619001

Frequently asked questions about this product

Answered by specialists

Which screw type is this bit designed for?: This bit is engineered for Torq-Set screws in size 1.
What drive size does this bit have?: It features a standard 1/4" hexagon drive according to DIN ISO 1173-D 6.3.
What is the benefit of the Wera Mplus profile?: The Mplus design strengthens the flanks to provide higher breaking torque and a longer service life.
What is the total length of this bit?: The total length of this bit is 25 mm.
Is this bit VDE-certified for live electrical work?: No, this bit is not VDE-certified and is not insulated.