{HEAD ~ Each} of the fingers is provided with laterally facing and transversely facing cutting edges and has a curvilinear profile terminating at {TAIL ~ a distal tip} 
{ HEAD ~ Each } of the fingers is provided with laterally facing and transversely facing cutting edges and has a curvilinear profile terminating at { TAIL ~ a distal tip }
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 TAIL TAIL TAIL TAIL TAIL TAIL TAIL