Note that the metric hex key set is also on sale for $8.99 right now. This set usually hovers around a sale price of around $18. I got this at around $14.99 and have been watching the metric set for a while and I had never seen the price this low. The tool itself works very well — it doesn’t slip and you can go in at a bit of an angle because of the ball tip.
http://www.sears.com/craftsman-8-…ckType=G14
http://www.sears.com/craftsman-8-…ckType=G15