The circular saw for the building industry, is a simple and sturdy machine useful both for marble and granite and other similar stones. The operation of the machine is simple and does not require any skilled operators. The longitudinal cut is manually fed (Optional-can be power driven) using a hand wheel or pull handle. The cutting disc is a direct drive from the electric motor. The machine consists of a steel base which supports two horizontal chromium plated bars with a blade carrier running on linear ball bearings giving perfect accuracy. The blade rise and fall is regulated by means of a hand wheel located on top of the carriage. The saw bed consists of an integral water reservoir built of stainless steel, and water is circulated by means of submersible pump complete with filters. The saw head is inclinable and is locable to produce inclined cuts from 0 to 45 degree.