CUTTING MACHINE

A cutting machine comprising: a cutting portion (4) comprising: a motor (6); a motor housing (50; 150) accommodating the motor (6) therein; an output shaft (7) configured to be rotated upon rotation of the motor (6), a cutting blade (8) being configured to be detachably attached to the output shaft (7); a battery pack (9) serving as a power source of the motor (6); and a battery pack attaching portion (10) including a pair of rail portions (51B, 52B) with which the battery pack (9) is engageable; a base (2) having a contact surface (25) suitable for a workpiece (W) to be placed thereon; and a swing support mechanism (3) connected to the base (2) and the cutting portion (4) and including a swing shaft (35A) extending in parallel to the output shaft (7), the swing support mechanism (3) supporting the cutting portion (4) such that the cutting portion (4) is swingable about the swing shaft (35A) between a top dead center and a bottom dead center in a direction parallel to a side surface of the cutting blade (8), wherein the pair of rail portions (51B, 52B) extend in a direction crossing the side surface of the cutting blade (8).