I'm with Pete here, when the caliper is off the car. That tool with the paddles is meant to get in with the rotor is in place, needing only 1/4" clearance instead of the 1" my C-clamp would need.

If the pistons won't retract easily and smoothly with the nudge of a BF screwdriver or channel locks, and you need the power of a screw tool or C-clamp, you need to rebuild the caliper, off the car. For that, the special spreading tool is of no particular use.


--
Art Benstein near Baltimore

After a waitress asked if Yogi wanted his pizza cut into four or eight slices: "Four, I don't think I can eat eight."