Terry I think Andre buduc or piano tech sella real half inch quarter sawn plugs for plugging and re drilling pinblocks. I've made my own but not sure it's worth it if a whole set is needed. I think it took me about 2 hrs to make a set from left over pieces.I could not tell the difference between the plugged block or completely new block. I think advice is already posted as to 3 inch tenon cutter. Dale Erwin
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