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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 ...
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.
The purpose of the sharpening jig is to hold the blade or tool at the desired angle while grinding or honing the bevel. In some cases, the angle of the bevel is critical to the performance of the cutting edge—a jig allows for repeatability of this angle over a number of sharpening sessions. There are many styles of jig available commercially.
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.
A variety of blade materials can be used to make the blade of a knife or other simple edged hand tool or weapon, such as a sickle, hatchet, or sword. The most common blade materials are carbon steel, stainless steel, tool steel, and alloy steel. Less common materials in blades include cobalt and titanium alloys, ceramic, obsidian, and plastic.
A machete (/ m ə ˈ ʃ ɛ t i /; Spanish pronunciation:) is a broad blade used either as an agricultural implement similar to an axe, or in combat like a long-bladed knife. The blade is typically 30 to 66 centimetres (12 to 26 in) long and usually under 3 millimetres ( 1 ⁄ 8 in) thick.
A honing steel on a cutting board Common steel for use in households SEM images of the cross-section of a blade before (dull) and after (sharp) honing with a smooth rod [1]. A honing steel, sometimes referred to as a sharpening steel, whet steel, sharpening stick, sharpening rod, butcher's steel, and chef's steel, is a rod of steel, ceramic or diamond-coated steel used to restore keenness to ...
Grip the scabbard just below the frog with the left hand. Tilt it forward to form an angle of 45 degrees with the deck. At the same time, reach across the front of the body and grasp the sword grip with the right hand; draw the sword about 10 inches from the scabbard until the right wrist and forearm are straight and parallel to the deck.