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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]
Knife indentation is done away from the edge of a kitchen knife. A knife most simply has either a rectangular or wedge-shaped cross-section (sabre-grind v. flat-grind, but may also have concave indentations or hollows, whose purpose is to reduce adhesion of the food to the blade, so producing a cleaner and easier cut. This is widely found in ...
An edged weapon, [1] or bladed weapon, is a hand-to-hand combat weapon with a cutting edge. [2] Bladed weapons include swords, daggers, knives, and bayonets. Edged weapons are used to cut, hack, or slash; some edged weapons (such as many kinds of swords) may also permit thrusting and stabbing.
A grader, also commonly referred to as a road grader, motor grader, or simply blade, is a form of heavy equipment with a long blade used to create a flat surface during grading. Although the earliest models were towed behind horses, and later tractors , most modern graders are self-propelled and thus technically "motor graders".
A simple blade intended for cutting has two faces that meet at an edge. Ideally, this edge would have no roundness but in practice, all edges can be seen to be rounded to some degree under magnification either optically or with an electron microscope. Force is applied to the blade, either from the handle or pressing on the back of the blade.
The blade spine then tapers in thickness in either a straight line or a recurve to the knife's point, which may be located above, below, or in line with the central axis of the blade. The thinned false edge of the clip may be sharpened to form a true second cutting edge.
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