We love these T-handle wrenches from Feedback Sports. They're super customizable -- want a T25/5mm hex combo? Just combine the T25 cross piece with the 5mm hex lower -- and you can use them as a T or an L. They include hex sizes 2, 2.5, 3, 4, 5, 6, 8 and 10 plus T10, T25 and T30. Plus they pack down into a nice, small tool roll so you can take them with you to races.