{TAIL ~ A blind hole} 102 at the smoothly arched notch 101 is spaced from {HEAD ~ one end} of the smoothly arched notch 101 at a distance approximately 1/4 of the width of the smoothly arched notch 101 
{ TAIL ~ A blind hole } 102 at the smoothly arched notch 101 is spaced from { HEAD ~ one end } of the smoothly arched notch 101 at a distance approximately 1/4 of the width of the smoothly arched notch 101
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH 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