Quote: Originally Posted by
1LAPSRT 
Is it wide enough to catch all 4 pistons at once? What are the "pads" made of? I do a lot of HOT brakes and if it's plastic, it may not last too long.
Usually I just use the pad to push back the pistons. Turn it sideways and do one at a time. It's a little bit of back and forth, but it works in about 30 seconds per caliper.
1) It is made of metal so no problems with the heat.
2) What I do is leave the pads in, put the pad spreader "inside" making sure I catch both the inboard and outboard pad lip and then just turn. It pushes both pads backwards compressing all 4 pistons. You could also remove the pads but it would only push 2 pistons in at a time (either upper or lower..1 on each side). It is not wide enough to push all 4 back.