{TAIL ~ The bracket diameter} is measured from {HEAD ~ a center axis} extending through a center of the truncated cone 
{ TAIL ~ The bracket diameter } is measured from { HEAD ~ a center axis } extending through a center of the truncated cone
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH