Hair clipper

The clipper is moved so that hair is positioned between the teeth of the comb, and cut with a scissor action when one blade slides sideways relative to the other.

Friction between the blades needs to be as low as possible, which is attained by choice of material and finish, and frequent lubrication.

They are also used in the Russian army: when conscripts enter boot camp, they cut their hair close to the skin, sometimes using manual clippers.

[2] In Greece, male students had their heads shaved with manual hair clippers from the early 20th century until it was abolished in 1982.

In the 1950s and 1960s a law was implemented in Greece whereby head shaving with manual clippers was to be used as a punishment for young people caught by police, such as teddyboys and prostitutes.

[citation needed] This practice was extended to Greek hippies and leftist youths during the 1967-73 military regime.

[3] Manual hair clippers are used extensively by barbers in India to give short back and sides haircuts.

[citation needed] Orthodox Jews tend to avoid clipping the side of their heads.

Frank Wahl opened a manufacturing plant in Sterling, Illinois to produce and sell Leo's massager.

Most magnetic-type consumer grade hair clippers use a vibrating motor that moves the blade at a high resonant frequency.

Ceramic cutters are available; they are not subject to corrosion, and stay sharper longer because of a higher resistance to wear than metal blades.