The mechanical connector of the present invention also provides effective means for ensuring that the components will not become inadvertently separated when {HEAD ~ the combined instrument} is held by {TAIL ~ only one component} 
is held by
The mechanical connector of the present invention also provides effective means for ensuring that the components will not become inadvertently separated when { HEAD ~ the combined instrument } is held by { TAIL ~ only one component }
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 HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL