Patent ID: 7121775

Claim:
A portable electrical tool comprising: a tip tool; a cylindrical housing accommodating a motor including a chuck attachably and detachably holding the tip tool at a tip end of a rotation shaft; a base including: a surface plate which slides on an upper surface of work material, and which allows the tip tool to protrude from the surface plate downwardly; a cylindrical portion including a cutout portion to have a substantially C-shaped cross section; and a lever having a cam surface, and rotatable to a fixed position and a release position, wherein when the lever is in the fixed position, a gap at the cutout portion is narrowed to stop movement of the cylindrical housing in the cylindrical portion, wherein when the lever is in the release position, the cylindrical housing is movable by its own weight in the cylindrical portion, and wherein the portable electric tool further includes a stopper which can stop a rotation of the lever at a position between the fixed position and the release position.