Photo 1 of Portable hardness testers can measure materials: steel and cast steel, alloy tool steel, gray cast iron, ductile iron, cast aluminum alloy, copper-zinc alloy (brass), pure copper, forged steel (KH180)

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Photo 1 of Portable hardness testers can measure materials: steel and cast steel, alloy tool steel, gray cast iron, ductile iron, cast aluminum alloy, copper-zinc alloy (brass), pure copper, forged steel (KH180)Photo 2 of Portable hardness testers can measure materials: steel and cast steel, alloy tool steel, gray cast iron, ductile iron, cast aluminum alloy, copper-zinc alloy (brass), pure copper, forged steel (KH180)