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2. 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.

3. Knife sharpening - Wikipedia

   en.wikipedia.org/wiki/Knife_sharpening

   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 with hard particles, such as sandpaper. Additionally, a leather razor strop , or strop, is often used to straighten and polish an edge.

4. Knife making - Wikipedia

   en.wikipedia.org/wiki/Knife_making

   The standard size for a knifemakers' belt grinder is a grinder that runs a belt size of 2" by 72". Pre-polish grinding on a heat treated blade can be done if the blade is kept cool, to preserve the temper of the steel. Overheating can be observed in the knife by watching for heat discoloration. Some knife makers will use a coolant mist on the ...

5. Sharpening - Wikipedia

   en.wikipedia.org/wiki/Sharpening

   Video: Saw blade sharpening machine Edge/Apex of a knife after sharpening and stropping. Although this edge is sharp enough to bite a thumbnail, cut paper smoothly, or shave arm hair, the microscope plainly shows an edge which reflects light back into the lens.

6. Sharpening stone - Wikipedia

   en.wikipedia.org/wiki/Sharpening_stone

   The term is based on the word "whet", which means to sharpen a blade, [2] [3] not on the word "wet". The verb nowadays to describe the process of using a sharpening stone for a knife is simply to sharpen, but the older term to whet is still sometimes used, though so rare in this sense that it is no longer mentioned in, for example, the Oxford Living Dictionaries.

7. Ken Onion - Wikipedia

   en.wikipedia.org/wiki/Ken_Onion

   Onion has since moved on to design knives for Columbia River Knife and Tool, and most recently a knife sharpener with Work Sharp. Onion holds 36 design patents on different items including locks, mechanisms, and knife designs. [6] [7] Most notable of these is the Speed-safe mechanism used by Kershaw Knives.