An electric tool comprising: a body portion including: a tool attachment member to which a tool is attached; a driving unit configured to drive the tool; and a transmission unit configured to transmit driving force of the driving unit to the tool; a grip portion including a gripping part designed to be held by a user with his or her hand; and a battery pack configured to supply power to the driving unit, characterized in that: the grip portion includes: a first end portion; and a second end portion located opposite from the first end portion with respect to the gripping part, the body portion being connected to the first end portion, the battery pack being attached to the second end portion, the electric tool in its entirety, including the body portion, the grip portion, and the battery pack, is configured to stand by itself with a bottom surface, opposite from the grip portion, of the battery pack put on a mounting surface, characterised in that the battery pack includes a plurality of all-solid-state batteries, each of the plurality of all-solid-state batteries being formed in a sheet shape, and the plurality of all-solid-state batteries are stacked one on top of another, and wherein a direction in which the plurality of all-solid-state batteries are stacked one on top of another is aligned with a direction perpendicular to the bottom surface of the battery pack. a body portion including: a tool attachment member to which a tool is attached; a driving unit configured to drive the tool; and a transmission unit configured to transmit driving force of the driving unit to the tool; a grip portion including a gripping part designed to be held by a user with his or her hand; and a battery pack configured to supply power to the driving unit, characterized in that: the grip portion includes: a first end portion; and a second end portion located opposite from the first end portion with respect to the gripping part, the body portion being connected to the first end portion, the battery pack being attached to the second end portion, the electric tool in its entirety, including the body portion, the grip portion, and the battery pack, is configured to stand by itself with a bottom surface, opposite from the grip portion, of the battery pack put on a mounting surface, characterised in that the battery pack includes a plurality of all-solid-state batteries, each of the plurality of all-solid-state batteries being formed in a sheet shape, and the plurality of all-solid-state batteries are stacked one on top of another, and wherein a direction in which the plurality of all-solid-state batteries are stacked one on top of another is aligned with a direction perpendicular to the bottom surface of the battery pack. the grip portion includes: a first end portion; and a second end portion located opposite from the first end portion with respect to the gripping part, the body portion being connected to the first end portion, the battery pack being attached to the second end portion, the electric tool in its entirety, including the body portion, the grip portion, and the battery pack, is configured to stand by itself with a bottom surface, opposite from the grip portion, of the battery pack put on a mounting surface, characterised in that the battery pack includes a plurality of all-solid-state batteries, each of the plurality of all-solid-state batteries being formed in a sheet shape, and the plurality of all-solid-state batteries are stacked one on top of another, and wherein a direction in which the plurality of all-solid-state batteries are stacked one on top of another is aligned with a direction perpendicular to the bottom surface of the battery pack.