An improved tooth in accordance 5 wherein said eccentric centrifugal force for holding said tooth in cutting position is overcome by the force generated by the tooth hitting a foreign object causing said tooth to temporarily rotate rearwardly to a protected position below {HEAD ~ the level} of {TAIL ~ said flighting} 
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An improved tooth in accordance 5 wherein said eccentric centrifugal force for holding said tooth in cutting position is overcome by the force generated by the tooth hitting a foreign object causing said tooth to temporarily rotate rearwardly to a protected position below { HEAD ~ the level } of { TAIL ~ said flighting }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL