4 years ago I built a deck out back. I had to pre-drill a few holes to keep the end of the boards from cracking when I put the screws to them. While drilling the holes using a counter sink bit I broke the drill bit in one of the boards, I just left it in there. Well like I said that was 4 years ago! So I frogot all about it. Well today I decided replace some bad deck boards. Some of the board were not that bad so decided to reuse them on another project. I inspected the boards and they look ok from what I “could see” The first board I sent though my planer is when that old drill bit showed up and put a nice chip in my newly sharpened plainer blades.
Well I thought I would just mention it here to give you all a heads up. I learned my lesson and I’m getting a metal detector!
-- St Augustine FL, Experience is the sum of our mistakes!