Alternatively, the user can, without turning the instrument and without changing {TAIL ~ the direction} in which {HEAD ~ cutting} is performed, change the direction of offset of the bend region 
in is performed
Alternatively , the user can , without turning the instrument and without changing { TAIL ~ the direction } in which { HEAD ~ cutting } is performed , change the direction of offset of the bend region
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL REL OTH HEAD HEAD HEAD HEAD HEAD REL REL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH