that socket, you can just get a 36 mm, it works on the 34 mm nut, that is the stock size, 36 mm is the new bolts size. not knowing if the axle has been changed you wont know what size it is till the wheels off. so just get a 36 is what im saying here, sooner or later you'll be doing a axle and will need the 36 mm either way down the road.
i know for a fact the 36 works on the 34, ive done it. its a bit loose fitting but it holds.
a breaker bar and a pipe will help break the bolt loose. little trick here to get it off, put the spare tire on, and 2 lug nuts back on just snugged up, then lower the car, then take the nut off, this way the wheel holds the axle from turning. you dont want to crank on the parking gear in the tranny.
some times a socket extension fits in the fins of the rotor, drop it in closest the rotor, let it hit the rotor, then crank on it, this also keeps you off the parking gear.
put it back on the same way, what ever you chose.
you can do the free rental for the torque wrench at auto zone or pep boys, you leave a deposit, when you return it they give you a full refund. aka free rental in my book.