Serrated blade

Serrated blade

A serrated blade is a type of blade used on saws and on some knives or scissors. Also known as a dentated or toothed blade.

A serrated blade has a cutting edge that has many small points of contact with the material being cut. By having less contact area than a smooth blade, the applied force at each point of contact is relatively greater and the points of contact are at a sharper angle to the material being cut. This causes a cutting action that involves many small splits in the surface of the material being cut, which cumulatively serve to cut the material along the line of the blade.

Cuts made with a serrated blade are typically less smooth and precise than cuts made with a smooth blade. Serrated blades are also more difficult to sharpen using a whetstone or rotary sharpener than a smooth blade.

External links

[http://gpvec.unl.edu/filesdatabase/files/feedlot/sharp1.htm Sharpening a Knife: Emphasis On Necropsy Equipment]


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