He's talking about the piston retraction tool. I just use Acadia's when I need one.
As far as I remember you only need that special tool for the rears, the front don't need compression + twist so your old pad in a c clamp should do
....someone correct me if I'm wrong on that.
Good luck using a c clamp on your front calipers. If you can get it to fit, push one in and the others come out.
Unless he hasn't installed them yet, he has a 6 piston bbk and would fight with a c clamp as well.