... for fast grinding and wet use only.For CNC and Radial Arm machines. Center waterfeed holes in each bit.applications:for fabrication ... producing polishing pads, cutting blade, core drill bits and stone processing machinery for more than 6 years.Now we are one ... Blade, Core Drill Bits, Diamond Cup wheel, Finger Bits, Stone Processing Machinery,etc.3.QualityWe believe quality is the base of ...