a brake caliper tool (really)
18mm
3/8 inch Allen wrench
7mm Allen wrench
you can get the tool that removes the rear calipers from any autozone or advance auto parts. they rent it to you and you leave a deposit. the tool is designed to turn the caliper as it is being pushed in. if this tool is not used the caliper will fail.
this is a special design guide (not a regular bolt)
I believe a 3/8 Allen is the right tool.
Hose?
there is no special tool to remove them but one is needed to compress them to get them back on for the rear.
By measuring it using a suitable tool such as a ruler or caliper
You would need a T40 Torx Bit to remover the caliper pins.
THE HEX BOLT SIZE IS 3/8 AND YOU CAN GET ONE AT ANY AUTO PARTS STORE FOR AROUND $5.00