Our Circular saw blade is made of quality HSS steel and processed through high technical heat treatment. This saw blade can process all metal materials, such as high speed steel, 45# steel, aluminum,stainless steel, iron pipe, also different types of metal, such as armor plate and tube and is particularly suitable for processing narrow seams. Tooth shape can be chosen at will so as to obtain optimum cutting effect according to diverse material and shapes They are very sharp and durable, providing smooth and fast cutting. We could produce non-standard (special specification) saw blades according to customers' drawings and samples. Our saw blades have longer life than others. Our products have a big share in the Chinese market, with a distinguish growth in overseas markets like Hong Kong, Taiwan, Southeast Asia, Modest and so on. SPECIFICATION: （GB/T6120-1996） DIA: from 63mm to 100mm THICKNESS: from 1.0mm to 3.5mm ID: from 16mm to 27mm NUMBER OF RACK(THICK): from 32mm to 24mm NUMBER OF RACK(THIN): from 100mm to 80mm MATERIAL: M2 HSS STEEL HRC:64-65