Important safety notice

For individual FEIN WSG 20-230 and WSG 25-230 angle grinder models

At FEIN, high quality has always been our top priority. FEIN power tools undergo tough field tests before they are launched on the market. This allows us to ensure that we provide our users with reliable power tools that they can depend on for years to come.

Some of the WSG 20-230 and WSG 25-230 angle grinder models that were produced between June 2017 and September 2018 may have a potential weak point, despite these strict quality standards. The key fact is that this may also affect all of the devices in the WSG 20-230 and WSG 25-230 angle grinder model ranges that underwent gearbox repairs during this time.

Other angle grinder models from FEIN are not affected by this problem.

FEIN has discovered that when some of the affected WSG 20-230 and WSG 25-230 angle grinder models are in operation, the cutting or grinding disc, including the mounting shaft, may come loose. This is caused by a defective component. If your angle grinder is affected by this issue, you must not use it until it has been inspected by the workshop responsible.

The online check is a quick, simple way to check whether your FEIN angle grinder with model designation WSG 20-230 or WSG 25-230 could have a potential weak point.

FEIN's mission is to ensure that you, as our customer, are always satisfied. This involves providing you with the best possible service from a team that acts quickly to offer you a solution fast.

We apologise for any inconvenience this causes and ask for your understanding and support while we rectify this issue.

How to check whether your device is affected:

Step 1: Serial number/material number

If you own a FEIN angle grinder with the model designation WSG 20-230 or WSG 25-230, you must check whether your device could be affected. To do this, you will need to note the serial number and material number for your angle grinder – you can find these on the type plate.

Material number
Serial number

Step 2: Online verification

Once you have identified the serial number and material number, please enter these in the online check function. This will immediately tell you whether your device is affected or not.

The material number is made up of 11 digits. Please check the number you have entered.
Serial number is ongeldig.

An error has occurred.

Unfortunately, your angle grinder is affected.

Please send the device to the FEIN repair workshop that is responsible for your region. Our workshops will inspect the machines and restore them to perfect condition. FEIN will pay for the shipping and workshop costs. To arrange this, contact the FEIN Service team responsible for your region at

Your angle grinder is not affected.

You can continue to use it as normal.