At a pinch, drilling a hole the external diameter of the plug cutter and clamping that to the board you are getting the plug out of can act as a guide so the pl

At a pinch, drilling a hole the external diameter of the plug cutter and clamping that to the board you are getting the plug out of can act as a guide so the plug cutter doesn’t spiral out and cut a hole in the wooden stairs you are using as an impromptu bench (for example).