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Nail clipper

In the field of personal hygiene, there have long existed nail trimming devices which are commonly referred to as nail clippers. Proper nail care often requires nail clipping to be performed. Humans possess a flattened, elastic structure of a horny texture located on the dorsal surface of the terminal phalanges of the fingers and toes, commonly referred to as "nails". For many years, the bulk of nail trimming has been done with the use of what is known as nail clippers. The function of nail clippers is to clip excessively long nails. A typical nail clipper will include a couple of metal jaws which are rigidly connected at one end and spaced at their biting end with the ability to be leveraged toward one another by a lever in order to perfect a bite and cutting action on one's nail. The non-biting end also typically includes a chain hole surface through which a chain passes to enable the nail clipper to be fastened to a key ring or the like. Nail clippers are most frequently held between the thumb and the phalange of the second row of the index finger and squeezed together to trim the anterior extremity or free edge of the nail. Through pressure on the operating lever, the cam surface on the operating lever forces the upper mandible into contact with the lower mandible to thereby clip a nail positioned therebetween.

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