American Blacksmithing, toolsmiths' and steelworkers' manual . lly but so the drill will cut rightalong. If you have no chance to get the compound,harden in water but draw no temper, let it be as hardas it will. If the iron is too hard to be drilled and you can heatthe same do so, heat to a low red heat and place apiece of brimstone just where the hole is to be; thiswill soften the iron through, so the hole can be it cool slowly. STANDING COULTERS Standing coulters are made of different materialsand of different shapes. Take a piece of iron 2^x3^,twenty-eight inches long. Cut off t
American Blacksmithing, toolsmiths' and steelworkers' manual . lly but so the drill will cut rightalong. If you have no chance to get the compound,harden in water but draw no temper, let it be as hardas it will. If the iron is too hard to be drilled and you can heatthe same do so, heat to a low red heat and place apiece of brimstone just where the hole is to be; thiswill soften the iron through, so the hole can be it cool slowly. STANDING COULTERS Standing coulters are made of different materialsand of different shapes. Take a piece of iron 2^x3^,twenty-eight inches long. Cut off the end after you 6o MODERN BLACKSMITHING have thinned it out about 5 inches from the end, cutdiagonally Now weld the cut-off piece to the mainshank. The cut-off piece to be laid on the outside andwelded, bend the iron as soon as it is welded so that ithas the shape of the coulter, draw out a good pointand sharpen the iron just the same as if it was a fin-ished coulter. This done, cut off a piece of steel, anold plow lay that is not too much worn will do, cut. STANDING COULTER the shape of the coulter you have now in the iron, andlet the steel be half an inch wider than the iron, buton the point let it be as long as it will, because thepoint ought to be quite long, say about nine draw the steel out thin on the upper end, heatthe iron red hot, place it on the anvil outside up, puta pinch of borax on it at the heel, then a pinch of steelborings, place the steel on top of this and keep in posi-tion with a pair of tongs; now hold it on the fire heeldown, and heat slow. When it is hot let the helperstrike a pressing blow or two on it and it will stickuntil you have taken the next weld. Put borings and I MODERN BLACKSMITHING 6l borax between steel and iron for each weld. Whenfinished, the angle should be that of the square; thatis, when you place the coulter in the square the shankshould follow one end of the square and the foot ofthe coulter the other. The edge of the out
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