The utility model discloses a saw cut metallic disc saw of small bore finished steel, mainly for the rigidity that improves the metal saw, saw cut precision and cutting rate and the design gone on. The utility model discloses saw cut metallic disc saw of small bore finished steel adopts box formula frame construction, sets up mesa clamping device on box formula frame construction's a side, saw first feeding device and saw first assembly quality equal embeddedly in box formula frame construction to the rigidity of increase equipment, just the power of will saw cutting turns into internal force, has reduced the influence to equipment foundations, mutually support and press from both sides the fixing pressing block and activity briquetting who tightly waits to saw steel, press from both sides tightly effectually to mentioned and saw cut the precision, saw bit fixed?establishment will the saw bit is fixed to be set up and presss from both sides tight planar below at steel, and also the saw head arranges for the formula of putting down that saw bit from bottom to top cuts, moves back the sword after saw cutting rapidly exactly to do not influence the production rhythm of working face, improve production efficiency.