Hi Scotty, thanks for all your help and knowledge you've provided for many years.  My question is I own a 2011 Honda accord crosstour v6 engine,4wd drivetrain has 96k miles on it. around 6k miles ago I replaced the front rotors and pads with wagner brand products. Recently now I'm experiencing a vibration in the brake pedal and steering wheel while braking. I watched your video about determining wheter the brake rotors are warped and I wanted to buy the tool that you the  outside caliper gauge. I  wanted to find out what size I should buy, it's offered in many different lengths. I don't own a dial indicator and am figuring this would thelp and is a lot cheaper to purchase. This is my wife's daily driver she rides the brakes but I'm still in shock that she possibly could have damaged the rotors already. The brand in your link for the outside caliper gauge is a general. Thanks for every thing and I look forward to your reply. 

Ralph