... #600 2.Beautiful shapes 3.Competitive Prices Item Name: Bar shape corundum whetstone hone oilstone #600 precise Other Name: ... Various colors Pricision, #1000 Super hardness, long-wearing Good balance High grinding efficiency High quality whetstone with competit We are ... china clay, feldspar and dextrin Shapes: Rectangular, square, boat, bar; We can do oil stone with handle Production process: Mixture ...