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