... grit size 46#2)Q:Hardness grade,Generally,please chose reasonable hardness cutting wheel to reduce its ... attrition wear.These factors can affect the cutting wheel hardness:The amount of resin bond to ... fast cut,2.Imported resin bonded makes our wheel stronger,3.Two reinforced nets,high strength,safety ... object,8.Minimum cutting waste,because of small wheel thickness,reduce cutting dust and noise, 9. ...