Patent ID: 7971361

Claim:
A portable circular saw, comprising: a saw body carrying a motor and a blade; a transmission mechanism for transmitting rotation of the motor to the blade; and a baseplate connected to the saw body which includes a first baseplate and a second baseplate, wherein the first baseplate has a first bottom surface, a first top surface, and a first thickness between the first bottom surface and the first top surface, wherein the second baseplate has a second bottom surface, a second top surface, and a second thickness between the second bottom surface and the second top surface, and wherein the second thickness is the same as the first thickness; wherein at least a part of the blade passes through an enclosed slot formed in the first baseplate; the first baseplate includes a first edge and a second edge located on opposing sides of the blade, a front edge, and a rear edge; and the second baseplate has a first position and a second position such that, at the first position, the second baseplate is adjacent to the first edge of the first baseplate and, at the second position, the secondary baseplate is adjacent to the second edge of the main baseplate; and wherein, in the first position and in the second position, the first bottom surface and the second bottom surface are coplanar, the first top surface and the second top surface are coplanar, and the front edge and the rear edge of the first baseplate are generally aligned with respective edges of the second baseplate.