Today, we had a new replacement cold cut saw installed at our school’s Engineering Dept., a MACC brand one with single vice.

I overheard the teacher telling the students how to cut a flat bar 75mm x 10mm. He told them not to stand it on its edge but lay it flat in the vice which means more saw teeth are engaged in the cut thus saving saw blade sharpness.

To me it sounded like an old wives tale. Has his method of cutting been scientifically proven to aid saw blade sharpness?


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