Proof you get what you pay for. + on the bits to make some doors. Read the reviews when everything would be fine. The problem with these bits is probably the shank 1/4 ". One of them in my router installed a decent router on the table which I have used many times with no problems. Before plugging it in, I manually rotated the chisel to make sure it wasn't touching the fence and railing and turned the power on. There was quite a vibration so I immediately unplugged it and made sure to turn it…