Wow, those rippers are $50 for three!<img src=icon_smile_shock.gif border=0 align=middle> Ouch. To put that in perspective for me, I would have to pay $200.00 for a dozen of them. I can get a dozen Magnus for $40.00. If price is an issue for folks, those heads would be tough.
http://www.heartlandlodge.com/bonebuster.htm