I have a print out of the tool codes that Lauver posted back a while. This is all products and relates to the first numbers in the part number.
http://forums.protoolreviews.com/casual-friday/171-sears-model-number-codes.html (http://forums.protoolreviews.com/casual-friday/171-sears-model-number-codes.html)
thanks, I just put it in favorites for later.