{HEAD ~ The shaft} 42 is devised as a multi sectional structure and is fastened at a center of {TAIL ~ the notch} 43 
{ HEAD ~ The shaft } 42 is devised as a multi sectional structure and is fastened at a center of { TAIL ~ the notch } 43
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH