Ya know what bites you worse than a good knuckle rap?
When you use a double tool bit holder and put a left and right tool bit in each one, thats what.
If you don't put some kind of cover over the exposed bit that is facing you,
you're going to rake your hand across it every time you get close to it.
I use one bit per holder.
Hey, did I tell you about the time I was cutting a tip without a shirt on in the summer?
Real smart eh. Didn't do that again. After that bite, I always made sure I knew where my upper body was in relation to the rear chuck.