Sengmented CNC Sintered Diamond Finger Router Bit 1)CNC diamond Finger bit for granite,drill bit 2)Gas 1/2",Dia 22,25mm Sengmented ... professional in producing polishing pads, cutting blade, core drill bits and stone processing machinery for more than 6 years.Now we ... tools manufacturer in Fujian Province.2.Main productsPolishing Pads,Cutting Blade, Core Drill Bits, Diamond Cup wheel, Finger Bits, ...