TOOL STEEL • DICCIONARIO INGLES.COM • Definition of Tool steel

... detachable heads and broomstick handles—more like dwarf halberds than ice-axes; and at least two workmanlike axes were indispensable. So the head of an axe was sawn to the pattern of the writer's out of a piece of tool steel and a substantial hickory handle and an iron shank fitted to it at the machine-shop in Fairbanks. It served excellently well, while the points of the fancy axes from New York splintered the first time they were used. "Climbing-irons," or "crampons," were also to make, no New York ...

— The Ascent of Denali (Mount McKinley) - A Narrative of the First Complete Ascent of the Highest - Peak in North America • Hudson Stuck

... contained 5 per cent. of carbon, all combined. The soft portion of the same casting weighed 4473/4 lb. per cubic foot, and contained 34.5 per cent. of carbon—31.5 being graphitic and 3.5 combined. Mr. Morgans doubted whether so great an increase in density often arises from chilling. Tool steel, when hardened by being chilled in cold water, does not become condensed, but slightly expanded from its bulk when annealed and soft. Here an increase of hardness is accompanied by a decrease of density. The gradual development of a network ...

— Scientific American Supplement, No. 586, March 26, 1887 • Various