Phillip writes: “When you need to set a hex head fastener in an out-of-the-way spot, nothing beats an actual magnetic nut setter. Otherwise, you can make up the tool with multiple pieces that prove to be a wobbly headache at best. Extended-length nut setters are usually hard to find. Well, you can grab one of these one-piece nutsetters from Wiha. The Type 704 series are available in 2.5″, 4″, 6″, and 12″ lengths in 1/4″, 5/16″, and 3/8″ socket sizes with a 1/4″ hex power drive to fit, for example, your impact driver. Right now through April 30, 2007 the 12″ set of 3 (sizes include 1/4″, 5/16″ and 3/8″) is marked down direct from Wiha from $29.94 to $19.46 for a $10.48 savings. They also use a permanent magnet for a strong hold.”
We also found ’em for $15 from at least one vendor via Froogle. Be sure and look around a bit — there are quite a few Wiha dealers out there.