Diamond Cup Wheel for concrete grinding 1.pecially grinding ,rough deburring 2.Universal dry ... Diamond Cup Wheel for concrete grinding is applicable of rubbing milling cutter, drill bits, cutter, saw blades, woodwork cutter, etc. Rubbing position ... 4 MMBack Attachment: 5/8" 11 TApplication : Granite, Marble, Stone, Concrete etcMode : Dry/Wet GrindingPackaging : Bubble Wrapped (Bio-degradable) OR Hard ...