### About Tool Steel

More

### Tight-Tolerance Multipurpose Oil-Hardening O1 Tool Steel Rods

- Yield Strength: 50,000 psi
- Hardness: Rockwell B90 (Medium)
- Heat Treatable: Yes
- Max. Hardness After Heat Treatment:

Inch sizes: Rockwell C65

Metric sizes: Rockwell C62 - Specifications Met: ASTM A681

Ready for turning in a lathe, these rods are precision ground to a tight diameter tolerance. They’re also known as drill rod. Often used for dies, punches, and gauges, O1 tool steel is an oil-hardening material that resists wear and abrasion.

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.

3 ft. Lg. | |||
---|---|---|---|

Dia. | Dia. Tolerance | Mechanical Finish | |

2mm | -0.013mm to 0.013mm | Precision Ground | 00000000 |

3mm | -0.013mm to 0.013mm | Precision Ground | 00000000 |

4mm | -0.013mm to 0.013mm | Precision Ground | 00000000 |

5mm | -0.013mm to 0.013mm | Precision Ground | 00000000 |

6mm | -0.013mm to 0.013mm | Precision Ground | 00000000 |

7mm | -0.013mm to 0.013mm | Precision Ground | 00000000 |

8mm | -0.013mm to 0.013mm | Precision Ground | 00000000 |

9mm | -0.013mm to 0.013mm | Precision Ground | 00000000 |

10mm | -0.013mm to 0.013mm | Precision Ground | 00000000 |

11mm | -0.013mm to 0.013mm | Precision Ground | 00000000 |

12mm | -0.013mm to 0.013mm | Precision Ground | 00000000 |

13mm | -0.025mm to 0.025mm | Precision Ground | 00000000 |

14mm | -0.025mm to 0.025mm | Precision Ground | 00000000 |

15mm | -0.025mm to 0.025mm | Precision Ground | 00000000 |

16mm | -0.025mm to 0.025mm | Precision Ground | 00000000 |

17mm | -0.025mm to 0.025mm | Precision Ground | 00000000 |

18mm | -0.025mm to 0.025mm | Precision Ground | 00000000 |

19mm | -0.025mm to 0.025mm | Precision Ground | 00000000 |

20mm | -0.025mm to 0.025mm | Precision Ground | 00000000 |

21mm | -0.025mm to 0.025mm | Precision Ground | 00000000 |

22mm | -0.025mm to 0.025mm | Precision Ground | 00000000 |

24mm | -0.025mm to 0.025mm | Precision Ground | 00000000 |

25mm | -0.025mm to 0.025mm | Precision Ground | 00000000 |

30mm | -0.025mm to 0.025mm | Precision Ground | 00000000 |

### Hardened Undersized High-Speed M2 Tool Steel Rods

- Yield Strength: Not Rated
- Hardness: Rockwell C60 (Very Hard)

These rods, also known as drill blanks, have an undersized diameter for machining your own jobbers'-length drill bits. They're hardened for increased abrasion and impact resistance. M2 tool steel offers a nice balance of wear resistance and machinability. It has a high molybdenum content, which allows it to maintain sharp cutting edges even at elevated temperatures.

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.

Dia. | Dia. Tolerance | Drill Bit Size | Lg. | Mechanical Finish | Straightness Tolerance | Each | |

1mm | -0.0050mm to 0.0000mm | 1 mm | 1 5/8" | Precision Ground | 0.012" per ft. | 00000000 | 00000 |

1.05mm | -0.0050mm to 0.0000mm | 1.05 mm | 1 5/8" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

1.1mm | -0.0050mm to 0.0000mm | 1.1 mm | 1 3/4" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

1.15mm | -0.0050mm to 0.0000mm | 1.15 mm | 1 3/4" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

1.2mm | -0.0050mm to 0.0000mm | 1.2 mm | 1 7/8" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

1.25mm | -0.0050mm to 0.0000mm | 1.25 mm | 1 7/8" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

1.3mm | -0.0050mm to 0.0000mm | 1.3 mm | 1 7/8" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

1.35mm | -0.0050mm to 0.0000mm | 1.35 mm | 1 7/8" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

1.4mm | -0.0050mm to 0.0000mm | 1.4 mm | 1 7/8" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

1.45mm | -0.0050mm to 0.0000mm | 1.45 mm | 1 7/8" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

1.5mm | -0.0050mm to 0.0000mm | 1.5 mm | 1 7/8" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

1.55mm | -0.0050mm to 0.0000mm | 1.55 mm | 1 7/8" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

1.6mm | -0.0050mm to 0.0000mm | 1.6 mm | 1 7/8" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

1.65mm | -0.0050mm to 0.0000mm | 1.65 mm | 2" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

1.7mm | -0.0050mm to 0.0000mm | 1.7 mm | 2" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

1.75mm | -0.0050mm to 0.0000mm | 1.75 mm | 2" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

1.8mm | -0.0050mm to 0.0000mm | 1.8 mm | 2" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

1.85mm | -0.0050mm to 0.0000mm | 1.85 mm | 2" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

1.9mm | -0.0050mm to 0.0000mm | 1.9 mm | 2" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

1.95mm | -0.0050mm to 0.0000mm | 1.95 mm | 2" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

2mm | -0.0050mm to 0.0000mm | 2.0 mm | 2 1/8" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

2.05mm | -0.0050mm to 0.0000mm | 2.05 mm | 2 1/8" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

2.1mm | -0.0050mm to 0.0000mm | 2.1 mm | 2 1/8" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

2.15mm | -0.0050mm to 0.0000mm | 2.15 mm | 2 1/8" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

2.2mm | -0.0050mm to 0.0000mm | 2.2 mm | 2 1/4" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

2.25mm | -0.0050mm to 0.0000mm | 2.25 mm | 2 1/4" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

2.3mm | -0.0050mm to 0.0000mm | 2.3 mm | 2 1/4" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

2.35mm | -0.0050mm to 0.0000mm | 2.35 mm | 2 1/4" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

2.4mm | -0.0050mm to 0.0000mm | 2.4 mm | 2 3/8" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

2.45mm | -0.0050mm to 0.0000mm | 2.45 mm | 2 3/8" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

2.5mm | -0.0050mm to 0.0000mm | 2.5 mm | 2 3/8" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

2.55mm | -0.0050mm to 0.0000mm | 2.55 mm | 2 1/2" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

2.6mm | -0.0050mm to 0.0000mm | 2.6 mm | 2 1/2" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

2.65mm | -0.0050mm to 0.0000mm | 2.65 mm | 2 1/2" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

2.7mm | -0.0050mm to 0.0000mm | 2.7 mm | 2 1/2" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

2.75mm | -0.0050mm to 0.0000mm | 2.7 mm | 2 5/8" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

2.8mm | -0.0050mm to 0.0000mm | 2.8 mm | 2 5/8" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

2.85mm | -0.0050mm to 0.0000mm | 2.85 mm | 2 5/8" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

2.9mm | -0.0050mm to 0.0000mm | 2.9 mm | 2 3/4" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

2.95mm | -0.0050mm to 0.0000mm | 2.95 mm | 2 3/4" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

3mm | -0.0050mm to 0.0000mm | 3 mm | 2 3/4" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

3.05mm | -0.0050mm to 0.0000mm | 3.05 mm | 2 3/4" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

3.1mm | -0.0050mm to 0.0000mm | 3.1 mm | 2 3/4" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

3.15mm | -0.0050mm to 0.0000mm | 3.15 mm | 2 3/4" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

3.2mm | -0.0050mm to 0.0000mm | 3.2 mm | 2 3/4" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

3.25mm | -0.0050mm to 0.0000mm | 3.25 mm | 2 3/4" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

3.3mm | -0.0050mm to 0.0000mm | 3.3 mm | 2 7/8" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

3.35mm | -0.0050mm to 0.0000mm | 3.35 mm | 2 7/8" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

3.4mm | -0.0050mm to 0.0000mm | 3.4 mm | 2 7/8" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

3.45mm | -0.0050mm to 0.0000mm | 3.45 mm | 2 7/8" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

3.5mm | -0.0050mm to 0.0000mm | 3.5 mm | 2 7/8" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

3.55mm | -0.0050mm to 0.0000mm | 3.55 mm | 2 7/8" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

3.6mm | -0.0050mm to 0.0000mm | 3.6 mm | 3" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

3.65mm | -0.0050mm to 0.0000mm | 3.65 mm | 3" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

3.7mm | -0.0050mm to 0.0000mm | 3.7 mm | 3" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

3.75mm | -0.0050mm to 0.0000mm | 3.75 mm | 3" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

3.8mm | -0.0050mm to 0.0000mm | 3.8 mm | 3 1/8" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

3.85mm | -0.0050mm to 0.0000mm | 3.85 mm | 3 1/8" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

3.9mm | -0.0050mm to 0.0000mm | 3.9 mm | 3 1/8" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

3.95mm | -0.0050mm to 0.0000mm | 3.95 mm | 3 1/8" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

4mm | -0.0050mm to 0.0000mm | 4 mm | 3 1/4" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

4.05mm | -0.0050mm to 0.0000mm | 4.05 mm | 3 1/4" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

4.1mm | -0.0050mm to 0.0000mm | 4.1 mm | 3 1/4" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

4.15mm | -0.0050mm to 0.0000mm | 4.15 mm | 3 1/4" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

4.2mm | -0.0050mm to 0.0000mm | 4.2 mm | 3 1/4" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

4.25mm | -0.0050mm to 0.0000mm | 4.25 mm | 3 1/4" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

4.3mm | -0.0050mm to 0.0000mm | 4.3 mm | 3 1/4" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

4.35mm | -0.0050mm to 0.0000mm | 4.35 mm | 3 3/8" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

4.4mm | -0.0050mm to 0.0000mm | 4.4 mm | 3 3/8" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

4.45mm | -0.0050mm to 0.0000mm | 4.45 mm | 3 3/8" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

4.5mm | -0.0050mm to 0.0000mm | 4.5 mm | 3 3/8" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

4.55mm | -0.0050mm to 0.0000mm | 4.55 mm | 3 3/8" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

4.6mm | -0.0050mm to 0.0000mm | 4.6 mm | 3 3/8" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

4.65mm | -0.0050mm to 0.0000mm | 4.65 mm | 3 1/2" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

4.7mm | -0.0050mm to 0.0000mm | 4.7 mm | 3 1/2" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

4.75mm | -0.0050mm to 0.0000mm | 4.75 mm | 3 1/2" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

4.8mm | -0.0050mm to 0.0000mm | 4.8 mm | 3 1/2" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

4.85mm | -0.0050mm to 0.0000mm | 4.85 mm | 3 1/2" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

4.9mm | -0.0050mm to 0.0000mm | 4.9 mm | 3 5/8" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

4.95mm | -0.0050mm to 0.0000mm | 4.95 mm | 3 5/8" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

5mm | -0.0050mm to 0.0000mm | 5 mm | 3 5/8" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

5.05mm | -0.0050mm to 0.0000mm | 5.05 mm | 3 5/8" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

5.1mm | -0.0050mm to 0.0000mm | 5.1 mm | 3 5/8" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

5.15mm | -0.0050mm to 0.0000mm | 5.15 mm | 3 3/4" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

5.2mm | -0.0050mm to 0.0000mm | 5.2 mm | 3 3/4" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

5.25mm | -0.0050mm to 0.0000mm | 5.25 mm | 3 3/4" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

5.3mm | -0.0050mm to 0.0000mm | 5.3 mm | 3 3/4" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

5.35mm | -0.0050mm to 0.0000mm | 5.35 mm | 3 3/4" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

5.4mm | -0.0050mm to 0.0000mm | 5.4 mm | 3 3/4" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

5.45mm | -0.0050mm to 0.0000mm | 5.45 mm | 3 7/8" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

5.5mm | -0.0050mm to 0.0000mm | 5.5 mm | 3 7/8" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

5.55mm | -0.0050mm to 0.0000mm | 5.55 mm | 3 7/8" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

5.6mm | -0.0050mm to 0.0000mm | 5.6 mm | 3 7/8" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

5.65mm | -0.0050mm to 0.0000mm | 5.65 mm | 3 7/8" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

5.7mm | -0.0050mm to 0.0000mm | 5.7 mm | 3 7/8" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

5.75mm | -0.0050mm to 0.0000mm | 5.75 mm | 3 7/8" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

5.8mm | -0.0050mm to 0.0000mm | 5.8 mm | 3 7/8" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

5.85mm | -0.0050mm to 0.0000mm | 5.85 mm | 3 7/8" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

5.9mm | -0.0050mm to 0.0000mm | 5.9 mm | 3 7/8" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

5.95mm | -0.0050mm to 0.0000mm | 5.95 mm | 3 7/8" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

6mm | -0.0050mm to 0.0000mm | 6 mm | 4" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

6.05mm | -0.0050mm to 0.0000mm | 6.05 mm | 4" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

6.1mm | -0.0050mm to 0.0000mm | 6.1 mm | 4" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

6.15mm | -0.0050mm to 0.0000mm | 6.15 mm | 4" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

6.2mm | -0.0050mm to 0.0000mm | 6.2 mm | 4" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

6.25mm | -0.0050mm to 0.0000mm | 6.25 mm | 4" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

6.3mm | -0.0050mm to 0.0000mm | 6.3 mm | 4" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

6.4mm | -0.0050mm to 0.0000mm | 6.4 mm | 4 1/8" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

6.5mm | -0.0050mm to 0.0000mm | 6.5 mm | 4 1/8" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

6.6mm | -0.0050mm to 0.0000mm | 6.6 mm | 4 1/8" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

6.7mm | -0.0050mm to 0.0000mm | 6.7 mm | 4 1/8" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

6.8mm | -0.0050mm to 0.0000mm | 6.8 mm | 4 1/8" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

6.9mm | -0.0050mm to 0.0000mm | 6.9 mm | 4 1/8" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

7mm | -0.0050mm to 0.0000mm | 7 mm | 4 1/8" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

7.1mm | -0.0050mm to 0.0000mm | 7.1 mm | 4 1/4" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

7.2mm | -0.0050mm to 0.0000mm | 7.2 mm | 4 1/4" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

7.3mm | -0.0050mm to 0.0000mm | 7.3 mm | 4 1/4" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

7.4mm | -0.0050mm to 0.0000mm | 7.4 mm | 4 3/8" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

7.5mm | -0.0050mm to 0.0000mm | 7.5 mm | 4 3/8" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

7.6mm | -0.0050mm to 0.0000mm | 7.6 mm | 4 3/8" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

7.7mm | -0.0050mm to 0.0000mm | 7.7 mm | 4 1/2" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

7.8mm | -0.0050mm to 0.0000mm | 7.8 mm | 4 1/2" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

7.9mm | -0.0050mm to 0.0000mm | 7.9 mm | 4 1/2" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

8mm | -0.0050mm to 0.0000mm | 8 mm | 4 1/2" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

8.1mm | -0.0050mm to 0.0000mm | 8.1 mm | 4 5/8" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

8.2mm | -0.0050mm to 0.0000mm | 8.2 mm | 4 5/8" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

8.3mm | -0.0050mm to 0.0000mm | 8.3 mm | 4 5/8" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

8.4mm | -0.0050mm to 0.0000mm | 8.4 mm | 4 3/4" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

8.5mm | -0.0050mm to 0.0000mm | 8.5 mm | 4 3/4" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

8.6mm | -0.0050mm to 0.0000mm | 8.6 mm | 4 3/4" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

8.7mm | -0.0050mm to 0.0000mm | 8.7 mm | 4 3/4" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

8.8mm | -0.0050mm to 0.0000mm | 8.8 mm | 4 7/8" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

8.9mm | -0.0050mm to 0.0000mm | 8.9 mm | 4 7/8" | Precision Ground | 0.012" per ft. | 00000000 | 0000 |

9mm | -0.0050mm to 0.0000mm | 9 mm | 4 7/8" | Precision Ground | 0.012" per ft. | 00000000 | 00000 |

9.1mm | -0.0050mm to 0.0000mm | 9.1 mm | 4 7/8" | Precision Ground | 0.012" per ft. | 00000000 | 00000 |

9.2mm | -0.0050mm to 0.0000mm | 9.2 mm | 5" | Precision Ground | 0.012" per ft. | 00000000 | 00000 |

9.3mm | -0.0050mm to 0.0000mm | 9.3 mm | 5" | Precision Ground | 0.012" per ft. | 00000000 | 00000 |

9.4mm | -0.0050mm to 0.0000mm | 9.4 mm | 5" | Precision Ground | 0.012" per ft. | 00000000 | 00000 |

9.5mm | -0.0050mm to 0.0000mm | 9.5 mm | 5" | Precision Ground | 0.012" per ft. | 00000000 | 00000 |

9.6mm | -0.0050mm to 0.0000mm | 9.6 mm | 5 1/8" | Precision Ground | 0.012" per ft. | 00000000 | 00000 |

9.7mm | -0.0050mm to 0.0000mm | 9.7 mm | 5 1/8" | Precision Ground | 0.012" per ft. | 00000000 | 00000 |

9.8mm | -0.0050mm to 0.0000mm | 9.8 mm | 5 1/8" | Precision Ground | 0.012" per ft. | 00000000 | 00000 |

9.9mm | -0.0050mm to 0.0000mm | 9.9 mm | 5 1/8" | Precision Ground | 0.012" per ft. | 00000000 | 00000 |

10mm | -0.0050mm to 0.0000mm | 10 mm | 5 1/8" | Precision Ground | 0.012" per ft. | 00000000 | 00000 |

10.1mm | -0.0050mm to 0.0000mm | 10.1 mm | 5 1/4" | Precision Ground | 0.012" per ft. | 00000000 | 00000 |

10.2mm | -0.0050mm to 0.0000mm | 10.2 mm | 5 1/4" | Precision Ground | 0.012" per ft. | 00000000 | 00000 |

10.3mm | -0.0050mm to 0.0000mm | 10.3 mm | 5 1/4" | Precision Ground | 0.012" per ft. | 00000000 | 00000 |

10.4mm | -0.0050mm to 0.0000mm | 10.4 mm | 5 1/4" | Precision Ground | 0.012" per ft. | 00000000 | 00000 |

10.5mm | -0.0050mm to 0.0000mm | 10.5 mm | 5 3/8" | Precision Ground | 0.012" per ft. | 00000000 | 00000 |

10.6mm | -0.0050mm to 0.0000mm | 10.6 mm | 5 3/8" | Precision Ground | 0.012" per ft. | 00000000 | 00000 |

10.7mm | -0.0050mm to 0.0000mm | 10.7 mm | 5 3/8" | Precision Ground | 0.012" per ft. | 00000000 | 00000 |

10.8mm | -0.0050mm to 0.0000mm | 10.8 mm | 5 1/2" | Precision Ground | 0.012" per ft. | 00000000 | 00000 |

10.9mm | -0.0050mm to 0.0000mm | 10.9 mm | 5 1/2" | Precision Ground | 0.012" per ft. | 00000000 | 00000 |

11mm | -0.0050mm to 0.0000mm | 11 mm | 5 1/2" | Precision Ground | 0.012" per ft. | 00000000 | 00000 |

11.1mm | -0.0050mm to 0.0000mm | 11.1 mm | 5 1/2" | Precision Ground | 0.012" per ft. | 00000000 | 00000 |

11.2mm | -0.0050mm to 0.0000mm | 11.2 mm | 5 5/8" | Precision Ground | 0.012" per ft. | 00000000 | 00000 |

11.3mm | -0.0050mm to 0.0000mm | 11.3 mm | 5 5/8" | Precision Ground | 0.012" per ft. | 00000000 | 00000 |

11.4mm | -0.0050mm to 0.0000mm | 11.4 mm | 5 5/8" | Precision Ground | 0.012" per ft. | 00000000 | 00000 |

11.5mm | -0.0050mm to 0.0000mm | 11.5 mm | 5 5/8" | Precision Ground | 0.012" per ft. | 00000000 | 00000 |

11.6mm | -0.0050mm to 0.0000mm | 11.6 mm | 5 3/4" | Precision Ground | 0.012" per ft. | 00000000 | 00000 |

11.7mm | -0.0050mm to 0.0000mm | 11.7 mm | 5 3/4" | Precision Ground | 0.012" per ft. | 00000000 | 00000 |

11.8mm | -0.0050mm to 0.0000mm | 11.8 mm | 5 3/4" | Precision Ground | 0.012" per ft. | 00000000 | 00000 |

11.9mm | -0.0050mm to 0.0000mm | 11.9 mm | 5 3/4" | Precision Ground | 0.012" per ft. | 00000000 | 00000 |

12mm | -0.0050mm to 0.0000mm | 12 mm | 5 7/8" | Precision Ground | 0.012" per ft. | 00000000 | 00000 |

12.1mm | -0.0050mm to 0.0000mm | 12.1 mm | 5 7/8" | Precision Ground | 0.012" per ft. | 00000000 | 00000 |

12.2mm | -0.0050mm to 0.0000mm | 12.2 mm | 5 7/8" | Precision Ground | 0.012" per ft. | 00000000 | 00000 |

12.3mm | -0.0050mm to 0.0000mm | 12.3 mm | 5 7/8" | Precision Ground | 0.012" per ft. | 00000000 | 00000 |

12.4mm | -0.0050mm to 0.0000mm | 12.4 mm | 5 7/8" | Precision Ground | 0.012" per ft. | 00000000 | 00000 |

12.5mm | -0.0050mm to 0.0000mm | 12.5 mm | 6" | Precision Ground | 0.012" per ft. | 00000000 | 00000 |

12.6mm | -0.0050mm to 0.0000mm | 12.6 mm | 6" | Precision Ground | 0.012" per ft. | 00000000 | 00000 |

12.7mm | -0.0050mm to 0.0000mm | 12.7 mm | 6" | Precision Ground | 0.012" per ft. | 00000000 | 00000 |

### 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.

- 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 |