Knife steel is the highest among the three?

Damascus, forged from stainless steel 440, D2 tool steel. Which is harder?

Strength is 440, but Retension board, it would be D2, is 440 flexible so that it is unlikely to break, but slightly dull, while d2 hard, it much better for the preservation Edge, but it is fragile and easily broken, then 440th

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Wüsthof Classic 3-1/2-Inch Paring Knife Wüsthof Classic 3-1/2-Inch Paring Knife
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The small size and sharp point of this paring knife make it ideal for handheld and other small or intricate cutting chores, such as vegetable peeling or mincing small amounts of parsley. An obligatory kitchen addition, this knife carries its weight mostly in its extremely comfortable handle, which allows you greater control. Part of the Classic series, this knife represents two centuries of unexce...
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The indispensable workhorse of any cutlery collection, a cook's knife performs a wide variety of cutting tasks, from fine chopping to dicing and slicing. The heavy 8-inch blade of this definitive model provides enough heft to allow the knife rather than the cook to do the cutting labor, but is more maneuverable than larger models. The length of the cutting edge makes quick work of all slicing jobs...
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Similar to a butcher knife, the Japanese-style santoku knife is a multipurpose gem for slicing, cubing, or dicing. Available in 5" or 7", the distinctive hollow-ground edge that alternates scallops on both sides of the blade, and yields a smooth, clean cut.About Wusthof Classic:• Precision-forged blades of Wusthof's own high-carbon, stain-resistant steel alloy, for a lasting edge that is easy...