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1.3246
HS6-5-2-5
1.3246 (HS6-5-2-5) is a cobalt-alloyed [[glossary:schnellarbeitsstahl|high-speed steel]], identical to 1.3243: 5 % [[element:Co|cobalt]] raises the [[glossary:warmhaerte|hot hardness]]. Applications: high-performance tools where you run high [[glossary:schneidgeschwindigkeit|cutting speeds]].