Yep, I do mark my bits so I'll know when to slow down or ease up. When I get close to the end I will retract the bit and give it one last chip clearing. I just thought everyone else did too. :biggrin:From the pic where you are drilling, it looks like you do the same little trick that I do, but I don't think you mentioned it George.
Before drilling, use the tube and make a mark on the drill bit. Then you know when to expect the drill to exit the other end and you can take that little bit more care.
Great tutorial BTW:biggrin:
Thanks for the compliment Skip!Nah, just us cleverish ones:biggrin: