/diy/ - Do It Yourself

What's the proper application of a t-handle tap wrench vs the long sort? I've never tapped metal but the time has come, and I am just going to buy individual parts as needed vs some bit kit of dubious quality. I want to get a good tap handle from the start. Starrett 91 and 93 seem to be high quality, but when do you use a T-handle tap wrench like the 93 vs a straight one like the 91? Not sure which one to get first, is it entirely about having enough clearance above the hole or is there something else to consider?

First hole I'm tapping is just a thread repair job with a chink sti tap but I've got future projects that need holes threaded, gonna just buy size-specific taps as they're needed.