I don't blame you. I have hit embedded stones in chipboard and had pieces of TCT hit my goggles. I have had a collet work loose and the bit come out. I have ha

I don't blame you. I have hit embedded stones in chipboard and had pieces of TCT hit my goggles. I have had a collet work loose and the bit come out. I have had them fight back on too many occasions. I once purchased a 2" wide flat cutter designed for cutting wide tennons. Even run at the correct speed it was jumpy as hell. The whole router would jump out of the work piece! You had to take tiny cuts. After doing a small number of tennons it was blunt! Waste of money. If you want to do woodwork as a hobby, get a set of chisels and a tennon saw... and enjoy yourself