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WERA 921 Kraftform Plus impact screwdriver- 900 series, 1/4" x 163.5 mm - 05018100001

Supplier number: WERA 05018100001 | EAN 4013288221698
Recommended Retail Price €127.95
60.80 tax incl.
€50.25 excl. VAT (incl. all environmental contributions)
On order: delivered from 10/10/2026

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

Loosen stubborn screws effortlessly with Wera

Practical benefits
  • Switchable manual impact function: You activate the built-in impact mechanism to break seized screws free using targeted hammer strikes.
  • Direct pound-thru power transfer: The continuous blade ensures you transfer strike energy directly into rotary movement with 25 Nm loosening torque.
  • Robust standard bit holder: With the 1/4" hexagon drive, you securely insert and switch between various specialised bits for any screw profile.

In a nutshell

The right choise for

With the Wera 921 Kraftform Plus impact screwdriver from series 900, you easily break seized and rusted screws free. The switchable manual impact function converts hammer strikes through the pound-thru blade directly into a loosening torque of up to 25 Nm without power loss. This prevents stripped fastener heads while eliminating the need for compressed air or electricity. Its robust 1/4" hexagon bit holder lets you change bits rapidly to match any screw profile. Measuring 163.5 mm in length, it allows you to switch smoothly between heavy-duty impact action and standard manual screwdriving.



€60.80
tax incl.

Product information

Key features according to our expert

  • Tool holder***: 1/4 inch
  • Max. tightening torque: 25 Nm
  • Length: 163,5 mm
  • Tool holder size: 1/4"
  • Tool holder type: Internal hexagon
  • Product Range: Wera Kraftform

Scope of delivery

  • 921 Kraftform Plus impact screwdriver - series 900, 1/4" x 163.5 mm

Product description

The impact screwdriver 921 combines the advantages of manual impact wrenches, compact tools and screwdrivers with pound-thru blade. The impact wrench function offers a loosening moment of up to 25 Nm. The robust bit holder allows the mounting of different specialised bits for various screw profiles. The pound-thru blade ensures complete power transmission (zero loss). The impact wrench function and screwdriver function can be switched as required.

  • For loosening stubborn screw connections
  • Manual impact wrench function can be switched on and off
  • Hammer blow impulse is converted into a rotary movement with a loosening torque of approx. 25 Nm - without loss via a pound-thru blade
  • Reversible functions: impact wrench and screwdriver
  • Combines the advantages of manual impact wrenches, compact tools and screwdrivers with pound-thru blade

Application

  • Suitable for impact wrench bits with 1/4" external hexagon tip

Design

  • Switching function impact wrench/screwdriver; pound-thru blade; 1/4" hexagonal socket mounting, magnetic

Handle

  • Kraftform with anti-roll protection, multi-component

Features and benefits

  • The 921 impact screwdriver combines the advantages of manual impact wrenches, compact tools and screwdrivers with pound-thru blade.
  • The 921 impact screwdriver combines the advantages of interchangeable blade sets, chiseldrivers and manual impact wrenches.
  • The manual impact wrench function can be switched on if required to loosen even stubborn screw connections.
  • With the impact wrench function switched on, the hammer blow impulse is converted into a rotary movement with a loosening moment of up to 25 Nm. Power transmission without loss via a pound-thru blade.
  • When the impact wrench function is deactivated, the hexagon bolster can be operated with a size 13 spanner for greater power transmission.
  • The robust bit mounting is suitable for bits with 1/4" external hexagon drive as per DIN ISO 1173-C 6.3 and E 6.3. The interchangeable blade system means low weight, reduced space requirement and high flexibility for the user.

All Features

Tool holder***
1/4 inch
Max. tightening torque
25 Nm
Length
163,5 mm
Tool holder size
1/4"
Tool holder type
Internal hexagon
Product range
Wera Kraftform
  • Brand WERA
  • EAN 4013288221698
  • Supplier number WERA 05018100001

Frequently asked questions about this product

Answered by specialists
What is the Wera 921 impact screwdriver used for?
You use it to loosen seized or stubborn screws and for standard manual screwdriving tasks.
What loosening torque does the impact function provide?
The switchable impact function converts hammer blows into a loosening torque of 25 Nm.
Which bits fit into the tool drive?
The robust bit holder is designed for standard 1/4" hexagon bits.
Can this tool be used as a regular screwdriver?
Yes, you can easily switch between the manual impact function and standard screwdriver function.
What are the dimensions of this impact screwdriver?
This tool features an overall length of 163.5 mm and a 1/4" drive.
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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