A first and second mounting portion is connected to each of {HEAD ~ the at least one tool support structure} and is connectable to a first and second mount on {TAIL ~ a base}, respectively 
A first and second mounting portion is connected to each of { HEAD ~ the at least one tool support structure } and is connectable to a first and second mount on { TAIL ~ a base } , respectively
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH