What kind of material is used for saw blade? How to distinguish between coarse, medium and fine teeth?
Fine tooth tooth -32 / three inches. The coarse teeth saw blade used in cutting cast iron and non-ferrous metal (such as copper, aluminum), tooth blade used for sawing steel, and fine tooth saw blade can be used for cutting low carbon steel, stainless steel and high toughness, fittings and special-shaped pipe fittings. Saw blade is the use of high carbon steel or low carbon steel carburizing, nitriding, quenching production.
Hand hacksaw refers to the number of teeth per inch (about 25.4mm) the number of teeth in the length, usually divided into coarse teeth per inch -18 tooth; tooth teeth per inch -24;
