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