About Tool Steel
More
Tight-Tolerance Multipurpose Air-Hardening A2 Tool Steel Rods
Precision ground and held to a strict straightness tolerance, these rods are ready for turning in your lathe. They’re also known as drill rod. A2 tool steel is more wear resistant than O1 and it keeps a sharper cutting edge. This air-hardening material is widely used for punches, broaches, and dies.
For technical drawings and 3-D models, click on a part number.
Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
Rods
- Yield Strength: See Table
- Hardness: See Table
- Heat Treatable: Yes
- Max. Hardness After Heat Treatment: See Table
- Specifications Met: ASTM A681
| Dia. | Dia. Tolerance | Yield Strength  | Heat Treatment | Hardness | Max. Hardness After Heat Treatment | Mechanical Finish | Straightness Tolerance | 1 ft. Lg. | 3 ft. Lg. | 6 ft. Lg. | |
| 1/16" | -0.0003" to 0.0003" | 55,000 psi | Annealed (Softened) | Rockwell B110 | Rockwell C62 | Precision Ground | 0.005" per ft. | 00000000 | |||
| 5/64" | -0.0003" to 0.0003" | 55,000 psi | Annealed (Softened) | Rockwell B110 | Rockwell C62 | Precision Ground | 0.005" per ft. | 00000000 | |||
| 3/32" | -0.0003" to 0.0003" | 55,000 psi | Annealed (Softened) | Rockwell B110 | Rockwell C62 | Precision Ground | 0.005" per ft. | 00000000 | |||
| 7/64" | -0.0003" to 0.0003" | 55,000 psi | Annealed (Softened) | Rockwell B110 | Rockwell C62 | Precision Ground | 0.005" per ft. | 00000000 | |||
| 1/8" | -0.0005" to 0.0005" | 55,000 psi | Annealed (Softened) | Rockwell B110 | Rockwell C62 | Precision Ground | 0.005" per ft. | 00000000 | |||
| 9/64" | -0.0005" to 0.0005" | 55,000 psi | Annealed (Softened) | Rockwell B104 | Rockwell C62 | Precision Ground | 0.005" per ft. | 00000000 | |||
| 5/32" | -0.0005" to 0.0005" | 55,000 psi | Annealed (Softened) | Rockwell B104 | Rockwell C62 | Precision Ground | 0.005" per ft. | 00000000 | |||
| 11/64" | -0.0005" to 0.0005" | 55,000 psi | Annealed (Softened) | Rockwell B104 | Rockwell C62 | Precision Ground | 0.005" per ft. | 00000000 | |||
| 3/16" | -0.0005" to 0.0005" | 55,000 psi | Annealed (Softened) | Rockwell B104 | Rockwell C62 | Precision Ground | 0.005" per ft. | 00000000 | |||
| 13/64" | -0.0005" to 0.0005" | 55,000 psi | Annealed (Softened) | Rockwell B104 | Rockwell C62 | Precision Ground | 0.005" per ft. | 00000000 | |||
| 7/32" | -0.0005" to 0.0005" | 55,000 psi | Annealed (Softened) | Rockwell B104 | Rockwell C62 | Precision Ground | 0.005" per ft. | 00000000 | |||
| 15/64" | -0.0005" to 0.0005" | 55,000 psi | Annealed (Softened) | Rockwell B104 | Rockwell C62 | Precision Ground | 0.005" per ft. | 00000000 | |||
| 1/4" | -0.0005" to 0.0005" | 55,000 psi | Annealed (Softened) | Rockwell B104 | Rockwell C62 | Precision Ground | 0.005" per ft. | 00000000 | |||
| 17/64" | -0.0005" to 0.0005" | 55,000 psi | Annealed (Softened) | Rockwell B101 | Rockwell C62 | Precision Ground | 0.005" per ft. | 00000000 | |||
| 9/32" | -0.0005" to 0.0005" | 55,000 psi | Annealed (Softened) | Rockwell B101 | Rockwell C62 | Precision Ground | 0.005" per ft. | 00000000 | |||
| 19/64" | -0.0005" to 0.0005" | 55,000 psi | Annealed (Softened) | Rockwell B101 | Rockwell C62 | Precision Ground | 0.005" per ft. | 00000000 | |||
| 5/16" | -0.0005" to 0.0005" | 55,000 psi | Annealed (Softened) | Rockwell B101 | Rockwell C62 | Precision Ground | 0.005" per ft. | 00000000 | |||
| 21/64" | -0.0005" to 0.0005" | 55,000 psi | Annealed (Softened) | Rockwell B101 | Rockwell C62 | Precision Ground | 0.005" per ft. | 00000000 | |||
| 11/32" | -0.0005" to 0.0005" | 55,000 psi | Annealed (Softened) | Rockwell B101 | Rockwell C62 | Precision Ground | 0.005" per ft. | 00000000 | |||
| 23/64" | -0.0005" to 0.0005" | Not Rated | Annealed (Softened) | Rockwell B103 | Rockwell C65 | Precision Ground | 0.005" per ft. | 0000000 | |||
| 3/8" | -0.0005" to 0.0005" | 55,000 psi | Annealed (Softened) | Rockwell B101 | Rockwell C62 | Precision Ground | 0.005" per ft. | 00000000 | |||
| 25/64" | -0.0005" to 0.0005" | 55,000 psi | Annealed (Softened) | Rockwell B101 | Rockwell C62 | Precision Ground | 0.005" per ft. | 00000000 | |||
| 13/32" | -0.0005" to 0.0005" | 55,000 psi | Annealed (Softened) | Rockwell B101 | Rockwell C62 | Precision Ground | 0.005" per ft. | 00000000 | |||
| 27/64" | -0.0005" to 0.0005" | 55,000 psi | Annealed (Softened) | Rockwell B101 | Rockwell C62 | Precision Ground | 0.005" per ft. | 00000000 | |||
| 7/16" | -0.0005" to 0.0005" | 55,000 psi | Annealed (Softened) | Rockwell B101 | Rockwell C62 | Precision Ground | 0.005" per ft. | 00000000 | |||
| 29/64" | -0.0005" to 0.0005" | 55,000 psi | Annealed (Softened) | Rockwell B101 | Rockwell C62 | Precision Ground | 0.005" per ft. | 00000000 | |||
| 15/32" | -0.0005" to 0.0005" | Not Rated | Annealed (Softened) | Rockwell B103 | Rockwell C65 | Precision Ground | 0.005" per ft. | 0000000 | |||
| 31/64" | -0.0005" to 0.0005" | 55,000 psi | Annealed (Softened) | Rockwell B101 | Rockwell C62 | Precision Ground | 0.005" per ft. | 00000000 | |||
| 1/2" | -0.001" to 0.001" | 55,000 psi | Annealed (Softened) | Rockwell B101 | Rockwell C62 | Precision Ground | 0.005" per ft. | 0000000 | |||
| 17/32" | -0.001" to 0.001" | 55,000 psi | Annealed (Softened) | Rockwell B101 | Rockwell C62 | Precision Ground | 0.005" per ft. | 0000000 | |||
| 9/16" | -0.001" to 0.001" | 55,000 psi | Annealed (Softened) | Rockwell B101 | Rockwell C62 | Precision Ground | 0.005" per ft. | 0000000 | |||
| 19/32" | -0.001" to 0.001" | 55,000 psi | Annealed (Softened) | Rockwell B101 | Rockwell C62 | Precision Ground | 0.005" per ft. | 0000000 | |||
| 5/8" | -0.001" to 0.001" | 55,000 psi | Annealed (Softened) | Rockwell B101 | Rockwell C62 | Precision Ground | 0.005" per ft. | 0000000 | |||
| 21/32" | -0.001" to 0.001" | 55,000 psi | Annealed (Softened) | Rockwell B101 | Rockwell C62 | Precision Ground | 0.005" per ft. | 0000000 | |||
| 11/16" | -0.001" to 0.001" | 55,000 psi | Annealed (Softened) | Rockwell B101 | Rockwell C62 | Precision Ground | 0.005" per ft. | 0000000 | |||
| 23/32" | -0.0005" to 0.0005" | Not Rated | Annealed (Softened) | Rockwell B103 | Rockwell C65 | Precision Ground | 0.005" per ft. | 0000000 | |||
| 3/4" | -0.001" to 0.001" | 55,000 psi | Annealed (Softened) | Rockwell B101 | Rockwell C62 | Precision Ground | 0.005" per ft. | 0000000 | |||
| 13/16" | -0.001" to 0.001" | 55,000 psi | Annealed (Softened) | Rockwell B101 | Rockwell C62 | Precision Ground | 0.005" per ft. | 0000000 | |||
| 7/8" | -0.001" to 0.001" | 55,000 psi | Annealed (Softened) | Rockwell B101 | Rockwell C62 | Precision Ground | 0.005" per ft. | 0000000 | |||
| 15/16" | -0.0005" to 0.0005" | Not Rated | Annealed (Softened) | Rockwell B103 | Rockwell C65 | Precision Ground | 0.005" per ft. | 0000000 | |||
| 1" | -0.001" to 0.001" | 55,000 psi | Annealed (Softened) | Rockwell B110 | Rockwell C62 | Precision Ground | 0.005" per ft. | 0000000 | |||
| 1 1/16" | -0.001" to 0.001" | 55,000 psi | Annealed (Softened) | Rockwell B110 | Rockwell C62 | Precision Ground | 0.005" per ft. | 0000000 | |||
| 1 1/8" | -0.001" to 0.001" | 55,000 psi | Annealed (Softened) | Rockwell B110 | Rockwell C62 | Precision Ground | 0.005" per ft. | 0000000 | |||
| 1 1/4" | -0.001" to 0.001" | 55,000 psi | Annealed (Softened) | Rockwell B110 | Rockwell C62 | Precision Ground | 0.005" per ft. | 0000000 | |||
| 1 3/8" | -0.001" to 0.001" | 55,000 psi | Annealed (Softened) | Rockwell B110 | Rockwell C62 | Precision Ground | 0.005" per ft. | 0000000 | |||
| 1 1/2" | -0.001" to 0.001" | 55,000 psi | Annealed (Softened) | Rockwell B110 | Rockwell C62 | Precision Ground | 0.005" per ft. | 0000000 | |||
| 1 3/4" | -0.001" to 0.001" | 55,000 psi | Annealed (Softened) | Rockwell B110 | Rockwell C62 | Precision Ground | 0.005" per ft. | 0000000 | |||
| 2" | -0.001" to 0.001" | 55,000 psi | Annealed (Softened) | Rockwell B110 | Rockwell C62 | Precision Ground | 0.005" per ft. | 0000000 | |||
| 2 1/4" | -0.001" to 0.001" | 55,000 psi | Annealed (Softened) | Rockwell B110 | Rockwell C62 | Precision Ground | 0.005" per ft. | 0000000 | |||
| 2 1/2" | -0.001" to 0.001" | 55,000 psi | Annealed (Softened) | Rockwell B110 | Rockwell C62 | Precision Ground | 0.005" per ft. | 0000000 | |||
| 2 3/4" | -0.001" to 0.001" | 55,000 psi | Annealed (Softened) | Rockwell B110 | Rockwell C62 | Precision Ground | 0.005" per ft. | 0000000 | |||
| 3" | -0.001" to 0.001" | 55,000 psi | Annealed (Softened) | Rockwell B110 | Rockwell C62 | Precision Ground | 0.005" per ft. | 0000000 |
Metric Rods
- Yield Strength: 55,000 psi
- Hardness: Rockwell B90 (Medium)
- Heat Treatable: Yes
- Max. Hardness After Heat Treatment: Rockwell C62
- Specifications Met: ASTM A681
| Dia., mm | Dia. Tolerance, mm | Heat Treatment | Mechanical Finish | Straightness Tolerance | 1 ft. Lg. | 3 ft. Lg. | 6 ft. Lg. | |
| 2 | -0.025 to 0.025 | Annealed (Softened) | Precision Ground | 0.0125" per ft. | 0000000 | |||
| 3 | -0.025 to 0.025 | Annealed (Softened) | Precision Ground | 0.0125" per ft. | 0000000 | |||
| 4 | -0.025 to 0.025 | Annealed (Softened) | Precision Ground | 0.0125" per ft. | 0000000 | |||
| 5 | -0.025 to 0.025 | Annealed (Softened) | Precision Ground | 0.0125" per ft. | 0000000 | |||
| 6 | -0.025 to 0.025 | Annealed (Softened) | Precision Ground | 0.0125" per ft. | 0000000 | |||
| 7 | -0.025 to 0.025 | Annealed (Softened) | Precision Ground | 0.0125" per ft. | 0000000 | |||
| 8 | -0.025 to 0.025 | Annealed (Softened) | Precision Ground | 0.0125" per ft. | 0000000 | |||
| 9 | -0.025 to 0.025 | Annealed (Softened) | Precision Ground | 0.0125" per ft. | 0000000 | |||
| 10 | -0.025 to 0.025 | Annealed (Softened) | Precision Ground | 0.0125" per ft. | 0000000 | |||
| 11 | -0.025 to 0.025 | Annealed (Softened) | Precision Ground | 0.0125" per ft. | 0000000 | |||
| 12 | -0.025 to 0.025 | Annealed (Softened) | Precision Ground | 0.0125" per ft. | 0000000 | |||
| 13 | -0.025 to 0.025 | Annealed (Softened) | Precision Ground | 0.0125" per ft. | 0000000 | |||
| 14 | -0.025 to 0.025 | Annealed (Softened) | Precision Ground | 0.0125" per ft. | 0000000 | |||
| 15 | -0.025 to 0.025 | Annealed (Softened) | Precision Ground | 0.0125" per ft. | 0000000 | |||
| 16 | -0.025 to 0.025 | Annealed (Softened) | Precision Ground | 0.0125" per ft. | 0000000 | |||
| 17 | -0.025 to 0.025 | Annealed (Softened) | Precision Ground | 0.0125" per ft. | 0000000 | |||
| 18 | -0.025 to 0.025 | Annealed (Softened) | Precision Ground | 0.0125" per ft. | 0000000 | |||
| 19 | -0.025 to 0.025 | Annealed (Softened) | Precision Ground | 0.0125" per ft. | 0000000 | |||
| 20 | -0.025 to 0.025 | Annealed (Softened) | Precision Ground | 0.0125" per ft. | 0000000 | |||
| 22 | -0.025 to 0.025 | Annealed (Softened) | Precision Ground | 0.0125" per ft. | 0000000 | |||
| 25 | -0.025 to 0.025 | Annealed (Softened) | Precision Ground | 0.0125" per ft. | 0000000 |