Novel safe tool bit applied to electric shaver

The utility model relates to the technical field of shavers, and discloses a novel safe tool bit applied to an electric shaver, which comprises a lower tool rest, the inner side of the lower tool rest is fixedly connected with a first limiting short column, the inner side of the lower tool rest is provided with a first steel blade assembly, the outer part of the first steel blade assembly is connected with a ceramic blade assembly, and the ceramic blade assembly is connected with a second limiting short column. An upper knife rest assembly is installed outside the ceramic blade assembly, a torsional spring is clamped to the inner side of the lower knife rest, and force arms on the two sides of the torsional spring are inserted into force arm installation holes in the two sides of the upper knife rest assembly. When the safe tool bit is used, the safe tool bit is installed on the shaver, an eccentric shaft on a tool bit motor in the shaver can drive the movable cutter mechanism to do left-right reciprocating m