... chipping & fast grinding. More aggressive and efficient. Diamond granite cup wheel:Diamond granite cup wheel is from Xiamen Verich Imp. & Exp. Co ... your requirement. We will reply you asap. Item No.:Diamond cup wheelDiameter:3"(80mm), 4"(100mm), 5"(125mm), 6"(150mm), ... to 10,000RPMBack:Thread: M14, 5/8-11Work Condition:Both for dry and wetProcessing Object:Granite, marble, manmade stone, concrete etc ...