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2. Sharpness (cutting) - Wikipedia

   en.wikipedia.org/wiki/Sharpness_(cutting)

   Sharpened metal drop-point blade Naturally occurring sharp obsidian piece Shark tooth with a sharp, serrated edge A sewing needle comes to a sharp point. Sharpness refers to the ability of a blade, point, or cutting implement to cut through materials with minimal force, and can more specifically be defined as the capacity of a surface to initiate the cut. [1]

3. Sharpening - Wikipedia

   en.wikipedia.org/wiki/Sharpening

   Sharpening these implements can be expressed as the creation of two intersecting planes which produce an edge that is sharp enough to cut through the target material. For example, the blade of a steel knife is ground to a bevel so that the two sides of the blade meet. This edge is then refined by honing until the blade is capable of cutting.

4. List of tool manufacturers - Wikipedia

   en.wikipedia.org/wiki/List_of_tool_manufacturers

   Outdoor power equipment [2] Apex Tool Group ... industrial hand tools, ... sharpening equipment Lie-Nielsen Toolworks: Warren, Maine, US: Lie-Nielsen: Hand tools and ...

5. Scissor grinder - Wikipedia

   en.wikipedia.org/wiki/Scissor_grinder

   Knife and scissor grinder sharpening a knife on a water-cooled grinding wheel, 2018.. A scissor grinder (German: Scherenschleifer), sometimes also scissor and knife grinder or knife and scissor grinder, for short also knife grinder, is a craftsman who sharpens and repairs blunt knives, scissors and other cutting tools.

6. Diamond tool - Wikipedia

   en.wikipedia.org/wiki/Diamond_tool

   They are often used in metallurgical specimens, carbide dies, carbide seals, spectacle glass industry, and for polishing diamonds. Diamond paste is mainly used in industrial requirements for polishing and sharpening metal blades and other metal surfaces. The paste is not just to polish the metal blade but sharpen the cutting edge as well.

7. Knife sharpening - Wikipedia

   en.wikipedia.org/wiki/Knife_sharpening

   Knife sharpener in Kabul, Afghanistan (1961) The Knife Grinder by Massimiliano Soldani (c.1700), Albertinum, Dresden A railway camp cook sharpens a knife blade on a stone wheel, 1927. Knife sharpening is the process of making a knife or similar tool sharp by grinding against a hard, rough surface, typically a stone, [1] or a flexible surface ...