Hardening, tempering, annealing and forging of steel; a treatise on the practical treatment and working of high and low grade steel .. . >t-V2-». h^U^ U FIG. 147.—SHAPES AND SIZES OF EMERY WHEELS TO USE FOR TOOL GRINDING. GRINDING. 229

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Keywords: ., bookcentury1900, bookdecade1900, bookidhardeningtem, bookyear1903