Accordingly, the flaps 46 can be used to secure instruments to the base member 12 in that region of the base member 12 adjacent {HEAD ~ the sheet} of {TAIL ~ abrasive material} 42 
Accordingly , the flaps 46 can be used to secure instruments to the base member 12 in that region of the base member 12 adjacent { HEAD ~ the sheet } of { TAIL ~ abrasive material } 42
OTH OTH OTH 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 REL TAIL TAIL TAIL TAIL TAIL TAIL OTH