Patrick is right on the beam. However, this does assume that you are mounting it on a table that uses the washer and nut. If you are using a table that features an armboard that employs a collar which tightens around the arm pillar (in place of the washer/nut) like certain Michel and Nottinghams (possibly others), you are SOL in using the OL supplied VTA adjuster, UNLESS you are able to obtain a very non-standard collet ring size to accommodate the adjuster. With the adjuster, VTA adjustment can be a pain, without one it, well, sucks.
The arm sounds superb, though. Accessories include (or should include) two allen wrenches, a quaint little Ortofon VTF guage, a paper aligment protractor, paper anti-skate arm angle template, VTA collar, the mounting hardware, and a confusing installation instruction manual.