Blade set for hair clippers

A blade set for hair clippers which comprises

• a lower fixed blade with a first toothed front edge;
• an upper fixed blade with a second toothed front edge which is disposed on top of the lower fixed blade and aligned corresponding to the lower fixed blade;
• a movable blade assembly which is flat and extends in a plane parallel to a lengthwise plane of the upper fixed blade and a lengthwise plane of the lower fixed blade and disposed in between the lower fixed blade and the upper fixed blade in such a way that a user's skin is protected from getting injured by the movable blade assembly;
• a driving means connected to the movable blade assembly to reciprocate the movable blade assembly laterally relative to the lower fixed blade and the upper fixed blade in an operating condition;
• a third toothed front edge provided at a front end of the movable blade assembly, a lower portion of which cooperates with an upper portion of the first toothed front edge to define a first cutting surface, and an upper portion of which cooperates with a lower portion of the second toothed front edge to define a second cutting surface, and the first cutting surface and the second cutting surface are configured to cut hairs on same side of the user's skin at one time;
• and
• a blade holder which secures the lower fixed blade, the movable blade assembly and the upper fixed blade together to form a blade set and the blade set is connected to the hair clippers;
• the blade holder comprises an upper pressing piece and a lower pressing piece;
• two springs are disposed between the upper pressing piece and the lower pressing piece in such a way to press the lower pressing piece against a top surface of the upper fixed blade;
• the lower pressing piece is provided with two recesses for receiving lower portions of the two springs respectively, and the upper pressing piece is provided with two receptacles for receiving upper portions of the two springs respectively.