bobham
Established Member
Man made sheet goods like particle board, MDF, and plywood are really hard on cutting edges. That is actually the main reason that carbide tipped saw blades have become the norm rather than the steel blades that used to be the only kind a home woodworker used.
John, I just noticed your question at the end of your post. If I had actually been intending to use these knobs I would certainly have drilled the hole first so that the turning would be concentric to the hole. Since it was just a demonstration I didn't bother with holes.
Take care
Bob
John, I just noticed your question at the end of your post. If I had actually been intending to use these knobs I would certainly have drilled the hole first so that the turning would be concentric to the hole. Since it was just a demonstration I didn't bother with holes.
Take care
Bob