An improved tooth in {TAIL ~ accordance} 5 wherein {HEAD ~ 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 the level of said flighting 
An improved tooth in { TAIL ~ accordance } 5 wherein { HEAD ~ 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 the level of said flighting
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