Reply by mics_54

If you use a hole saw (like the one shown) it helps alot to clean out the teeth often. They get clogged up with saw dust because that type of hole saw doesn’t allow the cuttings to self clean easily. The augers like the forstners or self feed augers are much faster for this reason. (but they are much more expensive)

-- Dan, Sterling Alaska, Before you criticise some one, walk a mile in their shoes...then you will be a mile away and you have their shoes!