i don't know how you would need a breaker bar for a drain plug..... nothin like stripped threads on a pan
I generally use an open ended wrench, half inch if I remember, or use a box wrench for it in right size.
Pending on the surface I jack up the car a bit on one side for room, crawl under belly down from the front and wrench it.
If ever you lose your direction when you're at an awkward angle..
using a ratchet set to loosen, moving it over the bolt makes for easy direction