Yep, That's a CE Jack Hammer, I have one, and it has very similar marks, which are on almost all of the CE (Competition Edge) models I've seen. They don't bother me and I expect to see them on any CE blade, they're meant to be users. <img src="/ubbthreads/images/graemlins/wink.gif" alt="" /> <img src="/ubbthreads/images/graemlins/thumbup.gif" alt="" />