A portion of the surface 37b and the beveled surface at {TAIL ~ the converging end} of {HEAD ~ the horse shoe}, which is the cutting edge 37, has a layer of hardened material applied to improve the wear and self sharpening characteristics of the tooth 
A portion of the surface 37b and the beveled surface at { TAIL ~ the converging end } of { HEAD ~ the horse shoe } , which is the cutting edge 37 , has a layer of hardened material applied to improve the wear and self sharpening characteristics of the tooth
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD 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 OTH