The tool {HEAD ~ T} may be hanged on the frame 1 ready for {TAIL ~ use} 
The tool { HEAD ~ T } may be hanged on the frame 1 ready for { TAIL ~ use }
OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL