Cuts an accurate tapered plug for a secure and seamless fit * Robust cutting prongs are extremely durable for cutting dense hardwoods * Titanium Nitride coating extends service life and reduces heat build up eliminating scorching
I would be sure to use a drill press and clamp the piece of wood very firmly to the drill press table. On the large plug, the action is very violent. I did this one time and then went back to using a tapered plug cutter with 4 cutting points.