Chad Waterbury wrote a great article about this a few weeks ago. Scroll down to his reference to mechanics and why they have forearms that would make Popeye blush.
Get some grippers and a rolling thunder. The RT is a thick (2.5" I think) rotating handle for one-armed deadlifts. These will torch your forearms and give you a stronger grip in the process, rather than having big fluffy forearms and weak hands.