Which screw type is this bit designed for?

This bit is designed for 1/4" Torq-set screws.

What drive connection does this bit use?

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 longer tool life.

What is the overall length of this bit?

The total length of the bit is 25 mm.

Is this bit VDE certified?

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

WERA 871/1 TORQ-SET Mplus 25 mm bit, 25 mm, 1/4" x 25 mm - 05066633001

Name: WERA 871/1 TORQ-SET Mplus 25 mm bit, 25 mm, 1/4" x 25 mm - 05066633001
Brand: WERA
SKU: 02646689
Price: 13.64 EUR
Availability: PreOrder

Supplier number: WERA 05066633001 | EAN 4013288037558

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.

Ordered before 20:00 - delivered as of 29/10/2026
Free shipping
Delivery by DHL

✆ Talk to a specialist

Reliable fastening with the Wera 871/1 Torq-Set bit

Practical benefits

Higher breaking torque resistance: The Mplus profile features stronger flanks, giving you extended service life and enhanced resistance to breakage during tough jobs.
Tough viscous design strength: Engineered for universal use, the ductile core prevents premature tip breakage when driving into hard materials.
Exact fit in holders: The standard 1/4" hexagon drive fits securely into holders matching DIN ISO 1173-D 6.3 for stable driving.

In a nutshell

The right choise for

Tackle demanding fastening tasks with confidence using the Wera 871/1 Torq-Set Mplus bit. Measuring 25 mm in length, this bit is engineered specifically for 1/4" Torq-Set security screws. The Mplus profile features reinforced flanks that deliver significantly higher breaking torque and extended service life. Its tough, ductile design prevents premature tip breakage when working with hard materials, while reducing slipping and cam-out during high-torque applications. With a standard 1/4" hexagon drive conforming to din iso 1173-D 6.3, it fits securely into your bit holder for stable and accurate power transmission.

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 1/4"
Drive profile size (bit): 1/4"

Scope of delivery

871/1 TORQ-SET® Mplus bits, 25 mm, 1/4" 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 1/4"
Drive profile size (bit): 1/4"

Brand WERA
02646689
EAN 4013288037558
Supplier number WERA 05066633001

Frequently asked questions about this product

Answered by specialists

Which screw type is this bit designed for?: This bit is designed for 1/4" Torq-set screws.
What drive connection does this bit use?: 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 longer tool life.
What is the overall length of this bit?: The total length of the bit is 25 mm.
Is this bit VDE certified?: No, this bit is not VDE certified or 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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0800 0226 945 [email protected]