Which screw type is this bit designed for?

This bit is designed for cross-recess Phillips screws with a PH 1 drive.

What connection drive does this bit have?

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

What is the benefit of the TZ torsion zone?

The torsion zone absorbs peak torque loads to prevent premature wear and breakage.

What is the overall length of this bit?

This bit has an overall length of 50 mm.

Is this bit VDE certified for live electrical work?

No, this bit is not VDE certified or insulated.

WERA 851/4 TZ PH bit Phillips, PH 1 x 50 mm - 05059805001

Name: WERA 851/4 TZ PH bit Phillips, PH 1 x 50 mm - 05059805001
Brand: WERA
SKU: 87010010
Price: 4.95 EUR
Availability: InStock

Supplier number: WERA 05059805001 | EAN 4013288013927

4.95 tax incl.

€4.09 excl. VAT (incl. all environmental contributions)

On stock - immediately available

Ordered before 20:00 - delivered tomorrow 16/10/2026
Shipping costs €11.99 VAT included | Free shipping for orders over a total amount of 125 euros
Delivery by DHL
Delivered from Belgium

✆ Talk to a specialist

Durable driving with Wera

Practical benefits

Extended service life: The built-in torsion zone absorbs peak torque loads so you prevent premature bit wear during heavy tasks.
Tough for hard materials: The ductile, tough-absorbing design ensures you drive into metal and hard surfaces without breakage.
Reach deeper screw locations: A standard 1/4" hex shank and 50 mm length give you easy access to recessed fixings.

In a nutshell

The right choise for

With the Wera 851/4 tz ph 1 x 50 mm bit, you drive confidently into hard materials such as metal and timber. Its tough-absorbing design combined with the specialized tz torsion zone cushions peak torque loads, preventing premature wear and tip breakage. The 50 mm length gives you effortless access to recessed cross-recess fixings without requiring a bulky holder extension. Designed with a standard 1/4" hex drive, it ensures a secure fit in your drill driver for continuous, accurate assembly.

Product information FAQ

€4.95

In stock - tax incl.

Key features according to our expert

Length: 50 mm
Drive profile size (bit): 1
Blade thickness: Not applicable
Type of drive profile (bit): Phillips
Connection size (bit): 1/4"
VDE approved: No
Bit profile: PH1

Scope of delivery

851/4 TZ bits, PH 1 x 50 mm

Product description

High quality bits with Torsion zone - where kinetic energy is diverted from peak loads. This greatly extends the product service life. Tough viscous, for universal use. 1/4" hexagon, suitable for holders as per DIN ISO 1173-F 6.3.

For Phillips screws
Torsion zone for absorption of peak loads
Enhanced service life of the bits
Tough for hard materials
1/4" hexagon drive (Wera connecting series 4)

Application

Phillips screws

Drive

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

Design

Torsion-style design to reduce premature wear, tough, for universal use

Features and benefits

TZ-Bits are tough bits with a torsion zone. Torsion bits absorb the damaging peak torque loads in the torsion zone. This prevents premature wear and enhances the service life of the bits.
Tough Wera bits prevent the tip from breaking prematurely. Z-bits usually are the bit for universal screwdriving applications.

All Features

Length: 50 mm
Drive profile size (bit): 1
Blade thickness: Not applicable
Type of drive profile (bit): Phillips
Connection size (bit): 1/4"
Vde approved: No
Bit profile: PH1
Tip size: PH 1

Brand WERA
87010010
EAN 4013288013927
Supplier number WERA 05059805001

Frequently asked questions about this product

Answered by specialists

Which screw type is this bit designed for?: This bit is designed for cross-recess Phillips screws with a PH 1 drive.
What connection drive does this bit have?: It features a standard 1/4" hexagon drive according to DIN ISO 1173-F 6.3.
What is the benefit of the TZ torsion zone?: The torsion zone absorbs peak torque loads to prevent premature wear and breakage.
What is the overall length of this bit?: This bit has an overall length of 50 mm.
Is this bit VDE certified for live electrical work?: No, this bit is not VDE certified or insulated.

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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03 74 000 41 [email protected]