That's a good deal, but I'm partial to this one myself. Never had any problems with it and it's very accurate. Unbelievable that it's $10 but works as well as any for lug nuts and general automotive.
http://www.harborfreight.com/cpi/ctaf/Displayitem.taf?itemnumber=239
Cheers,
...Colin
http://www.harborfreight.com/cpi/ctaf/Displayitem.taf?itemnumber=239
Cheers,
...Colin