material only that portion of the blade 39 s wear coat will sustain and visually show wear once the wear coat has been worn significantly away to a clean smooth surface 770 it will be an indication to the user that the cutting edge should be swapped for a new cutting edge of course the user will make the ultimate determination based upon the dullness of the blade unused cutting edges on the blade will be immediately recognizable by the un worn finish of the wear coat along those particular edges in some embodiments the wear coat could double as a lubricant which would reduce the friction of the knife blade against the cutting surface this could be particularly useful in certain fields of industry the wear coat indicates both when the blade is likely becoming dull and when the lubricant is running low xviii alternative embodiment knife blade 803 featuring a wear coat 818 fig2 a 28b show an alternative method of establishing a wear coat wherein the wear coat 818 consists of a raised or otherwise altered surface of the knife blade 803 along the cutting edge 805 of the blade the blade 803 is mounted to a knife handle 810 via a central mounting hole 807 and multiple secondary mounting holes 812 using features disclosed elsewhere above as the cutting edge is used the surface area of the wear coat 818 becomes worn down and wears.