Tried searching everywhere for this info and could not find the answer. Hopefully it has not been asked yet.
I know the Home/Turbo buttons are certainly not 10mm. I’m assuming its either 8mm or 9mm. I’m not able to check it myself because I already widened the holes. Long story short… it ended up looking like crap and my OCD forced me to buy a new plastic piece for the home and turbo area (it will be here by next week). Hoping someone on SRK measured this before so I can purchase my buttons now.