... plate and blades grinder plates and blades. grinder plate, grinder knife Material: 420J2, 440 and othersForged or castedHardness: HRC52-60Surface: mirror ... plate and bladesgrinder plate, grinder knife, grinder blade. butcher knife, chef knife, slicing knifefishing knife, fish fillet knife, army knife, outdoor knife, camping knife, survival knifebread slicer, spatula, scraper ...