a screw clamp and flat piece of wood or metal works as well if you don't have one...
Yup.
it's cost $5 for a piston tool to compress the pistons.
And you can just take the old brake pad and use as a backing to compress the pistons.
Helping out a freind with his brakes, but have a feeling even though the rotors and pads are gone, it seems his rear wheel is a little bit on the slant which is causing a continuous squeaking noise without even pressing the brakes.
Can either be the upper control arm lower control arm shocks and some other suspension components.
Possible for it to be in the rim or the actual tire.
I guess I'll remove the tire and visually inspect it to see if I can see anything.