I have installed my new Rock Chuck and would like to thank Ron for a truely fantastic piece of equipment. The experience of less noise,vibration and smooth cutting is something all owners of a Carvewright should experience. My machine is now a joy to operate and my concerns over replacing the QC. are a thing of the past . (replaced one before buying the Rock---- DON'T do what I did QC is poorly designed) Owner since Fathers Day 2009. Once again Thanks Ron. Joe Neri