* For the caliper bolts: These are typically 14mm or 15mm.
* For the caliper bracket bolts (if needed): These might be a different size, possibly 18mm.
* For the wheel lug nuts: These are usually 17mm or 19mm. Check your owner's manual or the sticker inside your driver's side doorjamb for this size.
It's crucial to use the correct size wrench to avoid stripping the bolts. Always use the right size socket or wrench and apply steady pressure. If a bolt is particularly stubborn, consider using penetrating oil beforehand.