To provide a striking tool that is inexpensive and light, and has improved durability.

A motor case 3 for storing a motor 7, an outer frame case 2 for storing a striking mechanism or the like for converting rotation of the motor 7 to a reciprocating motion, reciprocating a piston 10 disposed in a cylinder 9, interlocking a striking piece 11 via an air chamber in the cylinder 9, and transmitting the striking to a tip tool by striking an intermediate piece, and a handle 4 for storing a switch 12 and a cord are integrally formed and split into two at an axial plane of the tip tool, forming a case A5 and a case B6.