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Tool Steel > O-1

O-1, a tool steel being altered by oil hardening gives excellent performance where relatively high hardness and deep penetration with minimum distortion is required. O1 is easy to machine and safe in hardening, with good wear resistance and toughness.


Grade / Shape

Min (in)

Max (in)

Width Max (in)

Lengths (ft)

O-1 ANN DCF Flats & SQ 0.5 4 12 10 to 12
O-1 ANN DCF RD 0.5 12   10 to 12


Tool Steel Processing Services

  • Accurate Sawing or Cutting
  • Specialty Cutting
  • Flat Centerless Grinding
  • Optional Special Tolerance Grinding
  • Machining
  • Deburring
  • Heat Treating, Stress Relieving, Annealing
  • Special Testing
  • Special Sizes from plates and forgings