Maybe this should be in the lounge instead?
http://www.sears.com/shc/s/p_10153_12605_00915820000P
Normally $199.99, they're on sale for $179.99 before 10% extra tool savings (yeah, not sure how this double 10% is working but whatever). At $161.99, it's a fair price but there's more! Add coupon code SEARS5OFF50 for $5 off - price is now $ 157.49 (taken before the 10% so you only save $4.50). Last, create a Bing Cashback account at http://www.bing.com/cashback/ , login, and then search bing.com for "sears". There is 15% cashback at sears, making the final price 134.99 + tax. You will pay $157.49 initially but I've never had a problem getting Bing Cashback from Sears and I always use the $5 coupon.
The Bing Cashback program will no longer offer new purchases after the end of this month so this is likely the best deal these sockets will ever be.
I got one as I don't have any impact sockets and I believe these are also covered under their lifetime warranty (even if they're technically for air tools). I purchased a set (still in box) for $155 after cashback just a week ago so they'll be getting returned.
Basically a LOT of tools, including tool boxes, can be 33% off today (on top of any sale prices). I also picked up my missing intermediate chest that has been out of stock forever. $25 shipping slightly hurts though.