I bought mine at lebaron 8" pin bore last yr for almost 80bucks I think work fine.. still used it today.. prolly drill 70 to 90 holes and still sharp..
but on the other hand I found this.. maybe you want it, i hope this help.. 39.99 for an auger is a best price..
http://www.basspro.com/Bass-Pro-Shops-Hand-Ice-Auger/product/10219516/-1748839
hope this help...