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    42 Products
    About Steel
    industrial info icon

    Compare over 50 grades of steel and cast iron to find the right material for you—all with material certificates for traceability.

    Tight-Tolerance Air-Hardening A2 Tool Steel Rods

    Image of Product. Front orientation. Steel. Tight-Tolerance Air-Hardening A2 Tool Steel Rods.
    Precision ground and held to a strict straightness tolerance, these rods are ready for turning in your lathe. Also known as drill rod, this A2 tool steel is more wear resistant than O1 and keeps a sharper cutting edge. It’s air-hardening, so it doesn’t require baths or quenching after heat treatment. This tool steel is often used for punches, blades, and hammers.
    Material Certificate Icon
    Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
    Dia.
    Dia. Tolerance
    Fabrication
    Heat
    Treatment
    Hardness
    Max. Hardness After
    Heat Treatment
    Mechanical
    Finish
    Specs.
    Met
    1/2 ft.
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    1/4"-0.0005" to 0.0005"Hot RolledAnnealedRockwell B101 (Hard)Rockwell C62Precision GroundASTM A6818888K361—00000—000000000000000000000000000000
    17/64"-0.0005" to 0.0005"Hot RolledAnnealedRockwell B101 (Hard)Rockwell C62Precision GroundASTM A6818888K371—0000—00000—00000——
    9/32"-0.0005" to 0.0005"Hot RolledAnnealedRockwell B101 (Hard)Rockwell C62Precision GroundASTM A6818888K381—0000—00000—00000——
    19/64"-0.0005" to 0.0005"Hot RolledAnnealedRockwell B101 (Hard)Rockwell C62Precision GroundASTM A6818888K391—0000—00000—00000——
    5/16"-0.0005" to 0.0005"Hot RolledAnnealedRockwell B101 (Hard)Rockwell C62Precision GroundASTM A6818888K411—0000—0000000000000000000000000
    21/64"-0.0005" to 0.0005"Hot RolledAnnealedRockwell B101 (Hard)Rockwell C62Precision GroundASTM A6818888K711—0000—00000—00000——
    11/32"-0.0005" to 0.0005"Hot RolledAnnealedRockwell B101 (Hard)Rockwell C62Precision GroundASTM A6818888K721—0000—00000—00000——
    23/64"-0.0005" to 0.0005"Hot RolledAnnealedRockwell B101 (Hard)Rockwell C62Precision GroundASTM A6818888K66—00000—00000—00000——
    3/8"-0.0005" to 0.0005"Hot RolledAnnealedRockwell B101 (Hard)Rockwell C62Precision GroundASTM A6818888K421—00000000000000000000000000000000000
    25/64"-0.0005" to 0.0005"Hot RolledAnnealedRockwell B101 (Hard)Rockwell C62Precision GroundASTM A6818888K741—00000—00000—00000——
    13/32"-0.0005" to 0.0005"Hot RolledAnnealedRockwell B101 (Hard)Rockwell C62Precision GroundASTM A6818888K431—00000—00000—00000——
    27/64"-0.0005" to 0.0005"Hot RolledAnnealedRockwell B101 (Hard)Rockwell C62Precision GroundASTM A6818888K751—00000—00000—00000——
    7/16"-0.0005" to 0.0005"Hot RolledAnnealedRockwell B101 (Hard)Rockwell C62Precision GroundASTM A6818888K441—000000000000000000000000000000—
    29/64"-0.0005" to 0.0005"Hot RolledAnnealedRockwell B101 (Hard)Rockwell C62Precision GroundASTM A6818888K761—00000—00000—00000——
    15/32"-0.0005" to 0.0005"Hot RolledAnnealedRockwell B101 (Hard)Rockwell C62Precision GroundASTM A6818888K67—00000—00000—00000——
    31/64"-0.0005" to 0.0005"Hot RolledAnnealedRockwell B101 (Hard)Rockwell C62Precision GroundASTM A6818888K781—00000—00000—00000——
    1/2"-0.0010" to 0.0010"Hot RolledAnnealedRockwell B101 (Hard)Rockwell C62Precision GroundASTM A6818888K65—000000000000000000000000000000000000
    17/32"-0.0010" to 0.0010"Hot RolledAnnealedRockwell B101 (Hard)Rockwell C62Precision GroundASTM A6818888K12—00000—00000—00000——
    9/16"-0.0010" to 0.0010"Hot RolledAnnealedRockwell B101 (Hard)Rockwell C62Precision GroundASTM A6818888K14—0000000000000000000000000000000—
    19/32"-0.0010" to 0.0010"Hot RolledAnnealedRockwell B101 (Hard)Rockwell C62Precision GroundASTM A6818888K17—00000—00000—000000——
    5/8"-0.0010" to 0.0010"Hot RolledAnnealedRockwell B101 (Hard)Rockwell C62Precision GroundASTM A6818888K190000000000000000000000000000000000000000000
    21/32"-0.0010" to 0.0010"Hot RolledAnnealedRockwell B101 (Hard)Rockwell C62Precision GroundASTM A6818888K21—00000—00000—000000——
    11/16"-0.0010" to 0.0010"Hot RolledAnnealedRockwell B101 (Hard)Rockwell C62Precision GroundASTM A6818888K24—00000—00000—000000——
    23/32"-0.0005" to 0.0005"Hot RolledAnnealedRockwell B101 (Hard)Rockwell C62Precision GroundASTM A6818888K68—00000—00000—000000——
    3/4"-0.0010" to 0.0010"Hot RolledAnnealedRockwell B101 (Hard)Rockwell C62Precision GroundASTM A6818888K290000000000000000000000000000000000000000000
    13/16"-0.0010" to 0.0010"Hot RolledAnnealedRockwell B101 (Hard)Rockwell C62Precision GroundASTM A6818888K32—00000—00000—000000——
    7/8"-0.0010" to 0.0010"Hot RolledAnnealedRockwell B101 (Hard)Rockwell C62Precision GroundASTM A6818888K3400000000000000000000—000000——
    7 mm-0.0127 mm to 0.0127 mmHot RolledAnnealedRockwell B101 (Hard)Rockwell C62Precision GroundASTM A6818116K36—0000—00000—00000——
    8 mm-0.0127 mm to 0.0127 mmHot RolledAnnealedRockwell B101 (Hard)Rockwell C62Precision GroundASTM A6818116K37—000000000000000—00000——
    9 mm-0.0127 mm to 0.0127 mmHot RolledAnnealedRockwell B101 (Hard)Rockwell C62Precision GroundASTM A6818116K38—00000—00000—00000——
    10 mm-0.0127 mm to 0.0127 mmHot RolledAnnealedRockwell B101 (Hard)Rockwell C62Precision GroundASTM A6818116K39—000000000000000—00000——
    11 mm-0.0127 mm to 0.0127 mmHot RolledAnnealedRockwell B101 (Hard)Rockwell C62Precision GroundASTM A6818116K41—00000—00000—00000——
    12 mm-0.0127 mm to 0.0127 mmHot RolledAnnealedRockwell B101 (Hard)Rockwell C62Precision GroundASTM A6818116K4200000000000000000000—00000——
    13 mm-0.0250 mm to 0.0250 mmHot RolledAnnealedRockwell B101 (Hard)Rockwell C62Precision GroundASTM A6818116K43—00000—00000—000000——
    14 mm-0.0250 mm to 0.0250 mmHot RolledAnnealedRockwell B101 (Hard)Rockwell C62Precision GroundASTM A6818116K44—00000—00000—000000——
    15 mm-0.0250 mm to 0.0250 mmHot RolledAnnealedRockwell B101 (Hard)Rockwell C62Precision GroundASTM A6818116K45—00000—00000—000000——
    16 mm-0.0250 mm to 0.0250 mmHot RolledAnnealedRockwell B101 (Hard)Rockwell C62Precision GroundASTM A6818116K46—00000—00000—000000——
    17 mm-0.0250 mm to 0.0250 mmHot RolledAnnealedRockwell B101 (Hard)Rockwell C62Precision GroundASTM A6818116K47—00000—000000—000000——
    18 mm-0.0250 mm to 0.0250 mmHot RolledAnnealedRockwell B101 (Hard)Rockwell C62Precision GroundASTM A6818116K48—00000—000000—000000——
    19 mm-0.0250 mm to 0.0250 mmHot RolledAnnealedRockwell B101 (Hard)Rockwell C62Precision GroundASTM A6818116K49—00000—000000—000000——
    20 mm-0.0250 mm to 0.0250 mmHot RolledAnnealedRockwell B101 (Hard)Rockwell C62Precision GroundASTM A6818116K51—00000—000000—000000——
    22 mm-0.0250 mm to 0.0250 mmHot RolledAnnealedRockwell B101 (Hard)Rockwell C62Precision GroundASTM A6818116K53—00000—000000—000000——
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