T-handles are extremely useful for all sorts of applications. And they're even more functional if your existing sockets can be used. Here's a favorite member of CruzTOOLS family, which has a standard 1/4" drive tip. At about 7", it's easily carried on your bike and likely to become a staple in your tool box as well. Like the other PowerDrive T-handles, the mini driver has CruzTOOLS unique sliding "T" feature and a polished chrome finish. A great companion to the MiniSet tool kits (sold separately).