In {TAIL ~ the embodiment} shown, {HEAD ~ the form} has an area of diminished width to aid cutting of the probe shaft at the outside perimeter of the form  
In
In { TAIL ~ the embodiment } shown , { HEAD ~ the form } has an area of diminished width to aid cutting of the probe shaft at the outside perimeter of the form
REL TAIL TAIL TAIL TAIL TAIL TAIL 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 OTH