PROBLEM TO BE SOLVED: To provide a trimmer improved in cutting ability without increasing output of driving force. SOLUTION: The trimmer 1 comprises a pair of overlapping blades 6, 7 provided with clipping blades at their side edges, a motor 4 generating rotational movement, a convert mechanism 23 converting the rotational movement into reciprocating movement of the blades 6, 7; wherein an impact mechanism 24 is set between the motor 4 and the convert mechanism 23. COPYRIGHT: (C)2007,JPO&INPIT