Which tool needed for rear caliper piston retraction?

[metako]

okay I will report back when its recieved. 3C4M Guy-from what I have read the front pistons can be pushed back without a tool although a tool is easier and kinder on the pistons. For the rear however you do need a tool as the piston needs to be turned clockwise as you push it in as it has a handbrake mechanism inside it. I've seen people on youtube using pliers to turn the rear piston but I wouldn't do this as it risks damaging the piston.

[metako]

I recieved the tool 7 days after paying for it including a weekend so that's pretty good. It was postmarked as sent from NSW. The quality seems good (better than the pics on ebay) and although I haven't used it yet I believe the correct adapter for the Golf is the Nr6 or Nr7 as arrowed in the attached pic. I've read that the correct size is 2 x pins with a centre to centre of 31mm with 6mm OD pins. Why there are two adapters in this kit of the same size I do not know.

[brad]

#6 is 5.9mm studs on 32.8mm centres woth a depth of 5mm

#7 is 5.9mm studs on 33.4mm centres with a depth of (approx - stupid vernier doesn't do depth) 2.5mm.

Maybe that 0.6mm centre difference makes all the difference? Certainly the 2.5mm / 5mm stud depth appears meaningful.

[metako]

Mine are different. #6 pins are 6.18mm and 6.0mm OD with length of pin 4.66mm and 26.75mm between pins, which equals 32.84mm centre-to-centre.

#7 pins are 5.99mm OD both with length of 4.52mm and 26.93mm between pins, which equals 32.92 centre-to-centre, so there is marginal difference between them. It is hard to believe tolerances in the measurements of different pistons are this tight. Anyone got a Golf MkV rear piston to measure?

[3C4M Guy]

Any update metako on how the job went with this wind back kit?

[metako]

Sorry for the late update but we've moved house in the meantime and not much time for car repairs. We did manage to use the tool on the front brakes and it worked very well. Haven't yet tackled the rears but I imagine it will also work fine. Seems to be a good tool so far.

[jets]

Reviving an old thread. I purchased the same kit as metako for $26 posted from an Aust. supplier. Amazing value.
Universal 22pc Disc Brake Caliper Piston Rewind Tool Kit Set Auto Wind Back Car | eBay
I used it last weekend on the rear brakes & found No7 adapter fitted my '06 Golf TDI. I can confirm both sides screw in clockwise using the RH screwing jack used in conjunction with the banana shaped backing plate. I may write up some notes on my experience when I get a chance if there is any interest.