Change brake discs, how to?

Hi need to swap the front discs on my car, am I right in thinking that the caliper needs to be removed, and if so what size are the hex bolts for removing them?

Thanks in advance!
 
Hi need to swap the front discs on my car, am I right in thinking that the caliper needs to be removed, and if so what size are the hex bolts for removing them?

Thanks in advance!

Yes calliper just unbolts and lifts off then there's a screw counter sunk into the disk undo that and it comes off then replace with the new disc and put everything back