Wil:
I found that, if the puck wasn't frozen, a channel-lock with small, small teeth would grab the front portion (Dust shield step) and not leave excessive marks. I keep a pair with teeth nearly ground off for this, and other purposes.
Even with teeth ground off, a channel-lock grabs pretty good.

Maybe a pad of thin rubber wrapped around the piston inside the channel locks would be grippy enough to rotate it without damage.

ianc

I think regular channel-locks would bite through the rubber plus the space inside the calipers between piston and rotor is too confined.
Take an old pair and just grind off the teeth in front, it'll still grip pretty good provided the puck isn't frozen.

Well it's been 75 miles since the pad change and the brakes work good. Did notice they are a bit warm to the touch after driving home yesterday. Is this normal? Pads rubbing against the rotor when not braking?
Thanks

They will be a bit warm since they are engaged in the business of stopping the car. Rotate the wheel with the car out of gear and hand brake off. The wheels should spin freely and not bind anywhere. Some light scraping noises are OK,

ianc