Patent ID: 7096587

Claim:
A portable circular power saw comprising: a housing; a motor supported by the housing for rotating a saw blade to cut a work piece; a base supported by the housing and having an opening to expose the circular saw blade from the base; a saw cover supported by the housing and having a shape so as to cover a portion of the saw blade; and a laser emitter supported by the saw cover, being capable of emitting a laser beam to an area away from the saw blade along a cutting direction of the saw blade, and being adjustably shifted along an axial direction defined by a rotation axis of the saw blade, wherein the laser emitter emits a first portion of the laser beam passing through a window of the saw cover to an area placed near to a portion of the saw blade by which the work piece is currently cut, and the laser emitter is able to emit a second portion of the laser beam passing outside the window of the saw cover to an area placed in front of the base in the cutting direction.