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The product name:No Spark of hard rock spin cutter Model:U95JMGThe product features: 1.Use alloy flank technology body and hard alloy welding(patent),Website:http://www.qianruidrill.com, its shear strength is not less than 260MPa, filling ration of materials in welding gap are on above 90%, it is 2 times than national standard.2.Spinning by itself, make alloy and body be abrased on averagely.3. The No spark of alloy wear–resisting layer which is Cladded behind the alloy body , use medium " no spark", the cutter body is wear-resisting very much.Alloy head shape:A:CAPOur market leading cap carbi