On the router table I was cutting a few rabbets 3/8 x 3/8. First two went fine. next one not so well! I started the cut and got about 1 1/2" in and BANG! the board goes flying. After checking to see if I was leaking any red juice and changing my pants. I started thinking what the heck! I then started looking for what caused it to happen. I had noticed after the board went flying the router was making an odd noise. I checked the bit and this is what I found.
I'm just glad the carbide was captured in the wood and I didn't take a shot!
What do you think happened?