SIR Tools Hubmaster B90P wheel bearing service
 

This tool set it out of stock and I've used it only once to change all four of my Boxster wheel bearings. Nothing at all wrong with it, but I sold the car!
Comes with carry case as shown, also useful for many Porsche models. I've seen it as high as $450 but I'll take $225. Local pickup NNJ unless you want to pay shipping.
Pays for itself first time you do your bearings.
(Note: I put random years in the listing because it insisted)

Any idea if this will work with 987.2 Cayman ?

I don't know, quite frankly, but you can check the applications here:
NOTE: This is not the Master kit, it is 90P (Porsche Specific)

http://www.sirtools.com/B90.htm

Do you still have it ?