A question brought up in another forum got me to compose this and I thought it might contain some valuable information also for international Festool users and people in general who might look into Festool Centrotec accessories. So I re-wrote it in english to post here.
This is about usability of Festool Centrotec accessories with other manufacturers machines.
As far as I know there is only one manufacturer, namely Metabo, who's "Quick"-System will accept the Festool Centrotec chuck directly without using any adapter.
So if you want to use the key features of the Festool Centrotec system (better concentricity & easy and fast changing of tools) on another manufacturers (cordless) drill you need an adapter. For now, I'd like to stay away from a discussion about concentricity because there are way to many aspects that play into it - it's something each user, looking at his/her machines has to decide for him-/herself.
So back to the question, can Festool Centrotec accessories be used with other manufacturers machinery?
The answer is yes, as long as the other machine has a keyless/regular chuck that has a capacity/span length of at least 10 mm / 3/8".
What you are going to need are two things: Festool Keyless Chuck Centrotec Adapter - 496450 (Costs 22.00 USD as of 2/9/2017) and Festool Centrotec Chuck - 492135 (Costs 37.00 USD as of 2/9/2017)
Please also understand that the Festool Keyless Chuck Centrotec Adapter's hex portion is significantly wider than the standard 6,4 mm/ 1/4" hex portion of tooling/hex chucks. This will not fit any 6,4 mm/ 1/4" hex (quick change) chucks.
With these two accessories you can use any Festool Centrotec tools with any (cordless) drill that, again, has a chuck with minimum capacity/ span length of at least 10 mm / 3/8".
Pictures speak louder than words
Start - Festool CXS and Bosch GSR 10,8. CXS equipped with Centrotec bitholder, GSR equipped with Wera fast change bitholder.
Now the GSR is equipped with Festool Keyless Chuck Centrotec Adapter and Festool Centrotec Chuck
As said before - now it's compatible with all Festool Centrotec tools.
The Festool Bitholder is compatible with all 6,4 mm/ 1/4" hex Bits, in this instance Wera bit.
Not pretty, but also doable - putting Festool Centrotec tools directly into a chuck. All Festool Centrotec tools can be placed in any standard 6,4 mm/ 1/4" hex bitholder - but will be held only by friction and/or magnet. The missing notches on the hex part prevent fast change bitholders to lock onto the tool/bit.
Just a comparison shot of both machines with no tools.
You can use adapters to work with Festool Centrotec accessories on almost any (cordless) drill. If it makes sense for you to do/use/buy that is up to you.
I think if you have a big load of Festool Centrotec accessories it's a great idea to get the adapters so you can easily use and swap tools throughout all of your machines. However, you should consider that adding the adapters will add significantly to the length of your machine. Which might be a disadvantage depending on the task ahead.
One last thing to say, Festool Centrotec accessories, and accessories in general are some of the highest quality tools you can get so it might be a game changer already just being able to use these with your non-Festool (cordless) drill.
I hope you find this information useful and maybe future questions about Centrotec compatibility can be directed to this thread.
Please feel free to add your thoughts and experiences.