When coupled to the frame, the clamp and axle assembly is freely rotatable, and this free rotation automatically aligns the length of {TAIL ~ the edge} of the blade with the surface of {HEAD ~ a whetstone} 
When coupled to the frame , the clamp and axle assembly is freely rotatable , and this free rotation automatically aligns the length of { TAIL ~ the edge } of the blade with the surface of { HEAD ~ a whetstone }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD