My Snap on 3/8ths angled torque wrench would get in there, but i just nip them as tight as i can, never had a problem in 15 years and 500+ belt changes.
The nice part of putting a new timing pointer/bolt on is that the original ones were 12 point/star shaped, and could easily be damaged if torqued tightly. Toyota started supplying 6-point ones quite some time ago, which are much easier to deal with.