Bill,
You're welcome. I haven't tried the sears blades but I know the Nortons are top notch. At very least, make sure you get 1/32" (.035) thick blades. They do make 1/16" for heavier duty work on die grinders, but these little saws don't have the poop to drive them. Just as a side note, there are a couple guys on **** selling aluminum bases for these saws that have measurement scales and arrow supports on them. One of them, especially, looks really nice. I made a simple one out of an oak board and a yardstick that works fine for me. My arrows are pretty much the same length anyway. I cut my carbons with it, and I also cut the little pieces of aluminum shafting that I use for footing on the business end of the arrow. It's a good little tool for home use.
David