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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
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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.
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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 ft. Long | 2 ft. Long | 3 ft. Long | 4 ft. Long | 6 ft. Long | 8 ft. Long | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1/8" | -0.0005" to 0.0005" | Hot Rolled | Annealed | Rockwell B104 (Hard) | Rockwell C62 | Precision Ground | ASTM A681 | 8888K181 | 00000 | — | 00000 | — | 000000 | 000000 | |
| 9/64" | -0.0005" to 0.0005" | Hot Rolled | Annealed | Rockwell B104 (Hard) | Rockwell C62 | Precision Ground | ASTM A681 | 8888K221 | 0000 | — | 0000 | — | 00000 | — | |
| 5/32" | -0.0005" to 0.0005" | Hot Rolled | Annealed | Rockwell B104 (Hard) | Rockwell C62 | Precision Ground | ASTM A681 | 8888K231 | 0000 | — | 0000 | — | 00000 | 00000 | |
| 11/64" | -0.0005" to 0.0005" | Hot Rolled | Annealed | Rockwell B104 (Hard) | Rockwell C62 | Precision Ground | ASTM A681 | 8888K261 | 0000 | — | 0000 | — | 00000 | — | |
| 3/16" | -0.0005" to 0.0005" | Hot Rolled | Annealed | Rockwell B104 (Hard) | Rockwell C62 | Precision Ground | ASTM A681 | 8888K271 | 0000 | — | 0000 | 000000 | 00000 | 00000 | |
| 13/64" | -0.0005" to 0.0005" | Hot Rolled | Annealed | Rockwell B104 (Hard) | Rockwell C62 | Precision Ground | ASTM A681 | 8888K281 | 0000 | — | 00000 | — | 00000 | — | |
| 7/32" | -0.0005" to 0.0005" | Hot Rolled | Annealed | Rockwell B104 (Hard) | Rockwell C62 | Precision Ground | ASTM A681 | 8888K311 | 0000 | — | 00000 | — | 00000 | — | |
| 15/64" | -0.0005" to 0.0005" | Hot Rolled | Annealed | Rockwell B104 (Hard) | Rockwell C62 | Precision Ground | ASTM A681 | 8888K351 | 0000 | — | 00000 | — | 00000 | — | |
| 4 mm | -0.0127 mm to 0.0127 mm | Hot Rolled | Annealed | Rockwell B104 (Hard) | Rockwell C62 | Precision Ground | ASTM A681 | 8116K33 | 0000 | — | 00000 | — | 00000 | — | |
| 5 mm | -0.0127 mm to 0.0127 mm | Hot Rolled | Annealed | Rockwell B104 (Hard) | Rockwell C62 | Precision Ground | ASTM A681 | 8116K34 | 0000 | — | 00000 | — | 00000 | — | |
| 6 mm | -0.0127 mm to 0.0127 mm | Hot Rolled | Annealed | Rockwell B104 (Hard) | Rockwell C62 | Precision Ground | ASTM A681 | 8116K35 | 0000 | 000000 | 00000 | — | 00000 | — |
