The press fit enables a rotation and {HEAD ~ an axial displacement} between {TAIL ~ the holder} and sensor head 
The press fit enables a rotation and { HEAD ~ an axial displacement } between { TAIL ~ the holder } and sensor head
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH