Hi Sergey,
I did this job myself on the rear brakes, I used a simpler kit like this:
http://www.machinemart.co.uk/shop/pr...brake%20rewind
One thing I can say, the handle on these kits is too short, for one of the calipers I had to put a bit of pipe over the handle to get more leverage to get the turning started. Once the caliper piston starts turning its a bit easier, but not much.
The rear brake procedure:
http://www.audipages.com/Tech_Articl...earbrakes.html