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