What is my hammer doing?

[SaraS]

It has a Y shaped crack forming along the arms to the heads. Anyone have any idea what it's doing? I've checked my parameters and everything is checking out great. Since this crack has formed the heads have not been fully extended. Any ideas would be great!

 

[SloppyJ]

Just looks like its branching to me.

 

[jonnye46]

yea i agree with sloppyJ its branching out

 

[SaraS]

Thanks!

 

[SloppyJ]

If you get lucky they will branch out far enough and frag themselves for you.