Looking for a Snap On socket, or something thats a replacement...its a long 1/2" 12 point socket, its marked S6187...if I search on it I cant find it, but its a 6" or so long socket, really skinny, meant for getting at the 12 point nuts that are hard to get at on a SBC...its similar to Snap On pn S6260...
http://buy1.snapon.com/catalog/item....re&dir=catalog