... Prices Item Name: Dual color white alundum oil stone #1000 precise Other Name: Alundum sharpening tool, Abbrasive stone, ... grinder Advantages: Beautiful shapes Various colors Pricision, #1000 Super hardness, long-wearing Good balance High grinding efficiency High ... # 60# 80# 120# 180# 240# 320# 400# 500# 1000# 4000# 6000#Alundum carbide sharpening stone, oil stoneIngredients: alundum, carbide ...