benny,
The ratcheting box end wrenches work well and come in handy for other applications as well. As was said, Triumph sure uses a lot of different type and different size fasteners. That means that certain tools work in some areas and don't in others. I have tools from Sears, Mac, Matco, Snap-On, different auto parts stores, and even Harbor Freight, but I always seem to run into something on my TA where I need a different tool. I did a Google search on a 19mm hex bit and found a site that sells a 1/2" drive socket bit for $12.50 ( I think ).... It's McMaster-Carr. We buy a lot of stuff from them where I work.....
web page 
Catalogue page 2608
