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Sharpener With Pencil
A sharpener is a tool for sharpening. It may refer to: *Knife sharpener, a tool for sharpening a knife **Sharpening steel, a tool for sharpening a knife, usually a kitchen knife **Sharpening stone, a tool for sharpening a bladed or edged tool, such a knife *Pencil sharpener, a tool for sharpening a pencil *Sharpening jig, a tool for sharpening a woodworking tool See also *Knifegrinder, a trade or occupation {{disambig Sharpening ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sharpening
Sharpening is the process of creating or refining a blade, the edge joining two non-coplanar faces into a converging apex, thereby creating an edge of appropriate shape on a tool or implement designed for cutting. Improving sharpness is done by removing material on an implement with an abrasive substance harder than the material of the implement, followed sometimes by processes to polish/hone the sharp surface to increase smoothness. Tools and materials There are many ways of sharpening tools. Malleable metal surfaces such as bronze, iron and mild steel may be formed by beating or peening a flat surface into a sharp edge. This process also causes work hardening. An abrasive material may be rubbed against the cutting edge to be sharpened. The most traditional abrasive material is a natural stone such as sandstone or granite. Modern synthetic grinding wheels and flat sharpening stones can be manufactured in precise grades of abrasiveness according to the intended pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Knife Sharpener
Knife sharpening is the process of making a knife or similar tool sharp by grinding against a hard, rough surface, typically a stone, 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. The trade or occupation is called '' knifegrinder'' or ''knife sharpener''. Overview The smaller the angle between the blade and the stone, the sharper the knife will be, but the less side force is needed to bend the edge over or chip it off. The angle between the blade and the stone is the ''edge angle'' – the angle from the ''vertical'' to one of the knife edges, and equals the angle at which the blade is held. The total angle from one side to the other is called the ''included angle'' – on a symmetric double-ground edge (a wedge shape), the angle from one edge to the other is thus ''twice'' the edge angle. Typical edge angles are about 20° (making the included angle 40° on a d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sharpening Steel
Sharpening is the process of creating or refining a blade, the Edge (geometry), edge joining two non-coplanar Face (geometry), faces into a converging Apex (geometry), apex, thereby creating an edge of appropriate shape on a tool or implement designed for cutting. Improving sharpness (cutting), sharpness is done by removing material on an implement with an abrasive substance harder than the material of the implement, followed sometimes by processes to polish/hone the sharp surface to increase smoothness. Tools and materials There are many ways of sharpening tools. Malleable metal surfaces such as bronze, iron and mild steel may be formed by beating or peening a flat surface into a sharp edge. This process also causes work hardening. An abrasive material may be rubbed against the cutting edge to be sharpened. The most traditional abrasive material is a natural stone such as sandstone or granite. Modern synthetic grinding wheels and flat sharpening stones can be manufactured i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sharpening Stone
Sharpening stones, or whetstones, are used to sharpening, sharpen the edges of steel tools such as knife, knives through grinding and Honing (metalworking), honing. Such stones come in a wide range of shapes, sizes, and material compositions. They may be flat, for working flat edges, or shaped for more complex edges, such as those associated with some wood carving or woodturning tools. They may be composed of natural quarried material or from man-made material. They come in various grades, which refer to the Mesh (scale), grit size of the abrasive particles in the stone. (Grit size is given as a number, which indicates the spatial density of the particles; a higher number denotes a higher density and therefore smaller particles, which give a finer finish to the surface of the sharpened object.) Stones intended for use on a workbench are called bench stones, while small, portable ones, whose size makes it hard to draw large blades uniformly over them, especially "in the field", ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pencil Sharpener
A pencil sharpener (or pencil pointer, or in Ireland a parer or topper) is a tool for sharpening a pencil's writing point by shaving away its worn surface. Pencil sharpeners may be operated manually or by an electric motor. It is common for many sharpeners to have a casing around them, which can be removed for emptying the pencil shavings debris into a bin. History Before the development of dedicated pencil sharpeners, a pencil was sharpened by whittling with a knife. The development of pencil sharpeners began in France when a French book from 1822 reported in detail about an invention of Mr. C. A. Boucher (Paris) for the construction of a pencil sharpener. He was working with pantographs and apparently needed a device to precisely sharpen the pencils. The device of Mr. Boucher was technically sensible and functional. His idea was also internationally known and recognized, as shown by corresponding reports in German literature at this time. But Mr. Boucher had not applied a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sharpening Jig
A sharpening jig is often used when sharpening woodworking tools. Many of the tools used in woodworking have steel blades which are sharpened to a fine edge. A cutting edge is created on the blade at the point at which two surfaces of the blade meet. To create this cutting edge a bevel is formed on the blade, usually by grinding. This bevel is subsequently refined by honing until a satisfactorily sharp edge is created. 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. Fundamentally, all jigs are similar in that they allow the user to clamp the blade or tool in some way. The jig then has some means of referencing the clamped blade to the grinding or honing apparatus so that the bevel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Knifegrinder
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. It is an Apprenticeship, apprenticeship profession that nevertheless requires much experience. Wandering knife and scissors sharpeners, also known as itinerant sharpeners or, more antiquatedly, cart sharpeners, have existed in Europe since the Middle Ages. Traditionally, they came from a few regions of origin in northern Italy and northwestern Spain. In addition, the Migrant worker, itinerant craft was practiced by the so-called traveling people, including Sinti and Romani people, Roma, and is one of the traditional occupations of the Yenish people, Yenish, especially in Central and Western Europe. They moved through the towns and offered sharpening and sharpening knives and scissors. In the second half of the 20th century, the demand declined ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
