The tool may be shifted in {TAIL ~ different positions} and {HEAD ~ orientations} effective to provide an efficient cleaning action on the article to be cleaned 
The tool may be shifted in { TAIL ~ different positions } and { HEAD ~ orientations } effective to provide an efficient cleaning action on the article to be cleaned
OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH