{HEAD ~ 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 {TAIL ~ said tooth} to temporarily rotate rearwardly to a protected position below the level of said flighting 
{ HEAD ~ 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 { TAIL ~ said tooth } to temporarily rotate rearwardly to a protected position below the level of said flighting
HEAD HEAD HEAD HEAD HEAD HEAD HEAD 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 TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH