Attempted to replace front brake pads on my 2006 Escape (regular 4 cylinder version) and encountered tamper proof caliper bolts. (Bolt with the little post in the middle in the internal wrenching bolt). You guys say I need either a 9mm or 7mm allen wrench from reading this post. What do I do now? Sears sells torx sets that are rated like L45 (whatever that means) that are built for tamperproof bolts. Really appreciate advice from those that have done this before - thanks!