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WERA 851/1 IMP DC SB SiS bit Phillips, PH 3 x 25 mm - 05073917001

Supplier number: WERA 05073917001 | EAN 4013288158376
7.93 tax incl.
€6.55 excl. VAT (incl. all environmental contributions)
On stock - immediately available | we have 4 products in stock.
blister

  • Ordered before 20:00 - delivered as of 23/10/2026
  • Shipping costs €11.99 VAT included | Free shipping for orders over a total amount of 125 euros
  • Delivery by DHL
  • Delivered from Belgium

Reliable screwdriving under extreme torque

Practical benefits
  • Secure grip in screw: The diamond particle coating bites into the fastener head, helping you avoid cam-out and surface damage.
  • Built for impact drivers: With Wera Impaktor technology, you achieve an above-average service life even during demanding fastening applications.
  • Fast profile identification: The integrated color coding allows you to find the required PH3 bit in your toolbox instantly.

In a nutshell

The right choise for

Tackle demanding fastening jobs with complete control using the Wera 851/1 imp DC sb Impaktor bit. Engineered with advanced Impaktor technology, this 25 mm bit easily withstands the high torque peaks of modern impact drivers, delivering an exceptionally long service life. The diamond-particle coating bites firmly into the screw head to prevent slipping and cam-out, protecting your fasteners from unnecessary damage and wear. With the clear profile colour coding, you can instantly locate your PH3 bit with standard 1/4" hexagon drive in your toolbox. Experience fast, accurate, and dependable screwdriving on every build or assembly task.



€7.93
In stock - tax incl.

Product information

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: 1

Scope of delivery

  • 851/1 IMP DC SB Impaktor bits, PH 3 x 25 mm

Product description

High quality bits for Phillips screws. The Impaktor technology offers an above-average service life even under extreme circumstances. Enhanced friction resistance, thanks to the rough diamond-particle coating on the bit tip, prevents any slipping out of the screw head. Particularly suitable for use with customary impact drivers. 1/4" hexagon, suitable for holders as per DIN ISO 1173-D 6.3.

  • For Phillips screws
  • Impaktor technology for above-average service life
  • Particularly suitable for use with customary impact drivers
  • Diamond coating for a secure fit in the screw, literally bites into the screwhead to prevent cam-out
  • Take it easy tool finder: colour coding according to profile and size

Application

  • Phillips screws

Drive

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

Design

  • The Impaktor technology ensures an above-average service life even under extreme conditions thanks to a best-possible utilisation of the material properties and optimally designed geometry, particularly suitable for use with conventional impact drivers, the rough diamond coating reduces the danger of any slipping out of the screw head due to the enhanced frictional resistance. Take it easy tool finder: Output colour coding (red = Phillips) and large stamp to enable the desired bit to be easily located.

Features and benefits

  • Impaktor technology for an above-average service life even under extreme demands
  • For an above-average service life. Maximum utilisation of the material properties, a very special geometry - designed particularly to meet the extreme demands - as well a specific manufacturing process mean that Wera Impaktor tools have an above-average service life. Another product advantage is the coating of the Impaktor bits with minute diamond particles. These diamond particles reduce the cam-out effects - particularly high in power tool applications - which can lead to a slipping out of the screw head. The diamond particles literally bite themselves into the screw recess. This means that less contact pressure is required, something that greatly delays fatigue setting-in in power tool screwdriving jobs.
  • For use with impact screwdrivers. Improve productivity when screwdriving with power tools.
  • Maximum utilisation of the material properties, a very special geometry - designed particularly to meet the extreme demands - as well a specific manufacturing process mean that Wera Impaktor tools have an above-average service life.
  • Particularly high strength. Reduce the danger of premature bit breakage.
  • Torsion zone specially designed to absorb such forces and thereby protect the bit tip.
  • These diamond particles reduce the cam-out effects - particularly high in power tool applications - which can lead to a slipping out of the screw head. The diamond particles literally bite themselves into the screw recess. This means that less contact pressure is required, something that greatly delays fatigue setting-in in power tool screwdriving jobs.
  • Take it easy tool finder with colour coding according to profiles and size stamp - for simple and rapid accessing of the required tool.

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
1
  • Brand WERA
  • EAN 4013288158376
  • Supplier number WERA 05073917001

Frequently asked questions about this product

Answered by specialists
Is this screwdriver bit suitable for impact drivers?
Yes, the Impaktor technology is designed specifically to withstand the forces of impact drivers.
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 purpose of the diamond coating?
The diamond coating bites into the screw head to prevent slipping and cam-out.
What screw type and size does this bit fit?
It is designed for Phillips cross-head screws with a PH3 drive profile.
Is this bit VDE-insulated for electrical work?
No, this bit is not VDE-certified for working on live electrical circuits.
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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