Markings: Diamond‑C logo + catalog #206262. AuthenticCleveland Twist Drill Co. bit from theCle‑Forge line, stamped with the classicdiamond‑C maker’s mark and catalog number206262. This identifies it as a17/32" jobber‑length drill, High Speed Steel (HSS), black oxide finish, manufactured during Cleveland’s mid‑20th century production era (1960s–1980s).
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