Most likely a 15mm wrench. Unlikely to be Allen in that vehicle.
3/8" Allen wrench
take the motor off the backside of the calliper and turn the screw in with a allen wrench then push the piston in
I believe that's a 5/16. or possibly 3/8 Allen.
t-60
An allen wrench is sometimes referred to as a hex wrench or hex key.
I believe that's a 5/16 or maybe 3/8 Allen.
7mm Allen wrench
Allen Screws.
There is no Allen wrench, I believe it is 14 mm open wrench.
An Allen wrench is a hex head wrench - a screwdriver with a handle and hexagonal head at right angles to each other.
No they are NOT the same.