ELS1

Why is it necessary to have a #3 phillips screw driver?

my friend purchased a set of rotors and new brake pads...i told him i would do it for him because ive done MANY rotor/brake installs...but mostly on domestic vehicles... just wondering if there are any problems that im gonna run into beside the bolts being a pain in the !Removed! to remove(got plenty of PB). What size are the 2 caliper bolts and caliper frame bolts that holds the rotor? what about for the rear is it the same process? i usually use a rubber mallet to get the rotor out if its stuck...will that still work, or is there anything else that i might need to know? its a 94 lexus sc400. any tips/advice would be great. thanks guys :) 1999 Z28 310 rwhp / 321 rwtq 13.1 @ 105