Which screw type is this bit suitable for?

This bit is designed for Phillips cross-recess screws with a PH3 profile.

What drive connection does this Wera bit have?

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

How many bits are included in this pack?

This pack includes 2 Wera 851/1 TZ Phillips bits in size PH3 with a length of 25 mm.

Is this bit VDE-certified?

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

WERA 851/1 TZ SB SiS bit Phillips, PH 3 x 25 mm (2 pcs) - 05073325001

Name: WERA 851/1 TZ SB SiS bit Phillips, PH 3 x 25 mm (2 pcs) - 05073325001
Brand: WERA
SKU: 02818392
Price: 6.64 EUR
Availability: InStock

Supplier number: WERA 05073325001 | EAN 4013288029263

6.64 tax incl.

€5.49 excl. VAT (incl. all environmental contributions)

On stock - immediately available | we have 3 products in stock.

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Dependable fastening with Wera

Practical benefits

Torsion zone absorbs peak torque: The built-in torsion zone cushions sudden load peaks so you prevent premature wear and extend overall bit life.
Tough design for hard materials: The ductile, tough construction prevents tip breakage whenever you drive screws into dense or stubborn surfaces.
Universal hexagonal connection profile: Featuring a standard 1/4" hex drive, you can insert these PH 3 bits securely into any compatible holder.

In a nutshell

The right choise for

With the Wera 851/1 tz Phillips bits, you drive large PH3 cross-recess screws with total confidence. The integrated torsion zone effectively cushions peak torque loads, preventing premature wear and significantly extending bit service life. Thanks to their tough-absorbing design, these 25 mm bits resist tip breakage even during demanding fastening jobs in hard materials like wood and metal. Featuring a standard 1/4" hex drive compatible with din iso 1173-D 6.3 bit holders, they fit securely into your power tools and holders. This practical 2-piece set delivers the durability and reliable grip you need for heavy-duty assembly work.

Product information FAQ

€6.64

In stock - tax incl.

Key features according to our expert

Length: 25 mm
Drive profile size (bit): 3
Blade thickness: Not applicable
Type of drive profile (bit): Phillips
Connection size (bit): 1/4"
VDE approved: No
Bit profile: PH3
Number per blister: 2

Scope of delivery

851/1 TZ SB bits, PH 3 x 25 mm, 2 pieces
2x 851/1 TZ bits: PH 3 x 25 mm

Product description

Premium bits for Phillips screws. Torque peaks are cushioned by the torsion shape. Premature wear is avoided and the service life of the bit is increased. Tough, for universal use. 1/4" hexagonal, suitable for holding tools as per DIN ISO 1173-D 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 1)

Application

Phillips screws

Drive

1/4" hexagon, suitable for DIN ISO 1173-D 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: 25 mm
Drive profile size (bit): 3
Blade thickness: Not applicable
Type of drive profile (bit): Phillips
Connection size (bit): 1/4"
Vde approved: No
Bit profile: PH3
Number per blister: 2

Brand WERA
02818392
EAN 4013288029263
Supplier number WERA 05073325001

Frequently asked questions about this product

Answered by specialists

Which screw type is this bit suitable for?: This bit is designed for Phillips cross-recess screws with a PH3 profile.
What drive connection does this Wera bit have?: It features a standard 1/4" hexagon drive suitable for bit holders according to DIN ISO 1173-D 6.3.
What is the benefit of the TZ torsion zone?: The torsion zone cushions peak torque loads, preventing premature wear and extending bit service life.
How many bits are included in this pack?: This pack includes 2 Wera 851/1 TZ Phillips bits in size PH3 with a length of 25 mm.
Is this bit VDE-certified?: No, this bit is not VDE-certified or insulated for live electrical work.