I am very surprised to have never seen any talk about the use of wood grenades. I first saw one from my brother-in-law. I have since used them as the only way I split my wood. They are also very hard to find. Only place I have seen them is at Tractor Supply Co. But their's seem to be made of Chinese crap metal as I have broken the point off of about 5 in the course of splitting approximately 2 cords. The only place on the web that I have found them that seems reputable is Lehman's. So far, through about a cord this one has worked good. http://www.lehmans.com/jump.jsp?itemType=PRODUCT&iProductID=3334 Any thoughts / experiences??