Metric Drill Rods | McMaster-Carr

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M2 High-Speed Tool Steel

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228 Products

About Steel

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

Tight-Tolerance Multipurpose Oil-Hardening O1 Tool Steel Rods

Yield Strength: 50,000 psi
Hardness: Rockwell B90 (Medium)
Heat Treatable: Yes
Maximum Hardness After Heat Treatment: Rockwell C65
Fabrication: Hot Rolled
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. It can also be surface hardened with heat treating for added wear resistance. These rods have been manufactured to meet ASTM A681 standards for performance and quality.

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	Heat Treatment	Mechanical Finish		1 ft. Lg.	3 ft. Lg.	6 ft. Lg.
2mm	-0.013mm to 0.013mm	Annealed (Softened)	Precision Ground	00000000	00	00000	00
3mm	-0.013mm to 0.013mm	Annealed (Softened)	Precision Ground	00000000	00	0000	00
4mm	-0.013mm to 0.013mm	Annealed (Softened)	Precision Ground	00000000	00	0000	00
5mm	-0.013mm to 0.013mm	Annealed (Softened)	Precision Ground	00000000	00	0000	000000
6mm	-0.013mm to 0.013mm	Annealed (Softened)	Precision Ground	00000000	00	00000	00000
7mm	-0.013mm to 0.013mm	Annealed (Softened)	Precision Ground	00000000	00	00000	00000
8mm	-0.013mm to 0.013mm	Annealed (Softened)	Precision Ground	00000000	00	00000	00000
9mm	-0.013mm to 0.013mm	Annealed (Softened)	Precision Ground	00000000	00	00000	00000
10mm	-0.013mm to 0.013mm	Annealed (Softened)	Precision Ground	00000000	00	00000	00000
11mm	-0.013mm to 0.013mm	Annealed (Softened)	Precision Ground	00000000	00	00000	00000
12mm	-0.013mm to 0.013mm	Annealed (Softened)	Precision Ground	00000000	00	00000	00000
13mm	-0.025mm to 0.025mm	Annealed (Softened)	Precision Ground	00000000	00	00000	00000
14mm	-0.025mm to 0.025mm	Annealed (Softened)	Precision Ground	00000000	00	00000	00000
15mm	-0.025mm to 0.025mm	Annealed (Softened)	Precision Ground	00000000	00	00000	00000
16mm	-0.025mm to 0.025mm	Annealed (Softened)	Precision Ground	00000000	00	00000	00000
17mm	-0.025mm to 0.025mm	Annealed (Softened)	Precision Ground	00000000	000000	00000	00000
18mm	-0.025mm to 0.025mm	Annealed (Softened)	Precision Ground	00000000	00000	00000	00000
19mm	-0.025mm to 0.025mm	Annealed (Softened)	Precision Ground	00000000	00000	00000	00000
20mm	-0.025mm to 0.025mm	Annealed (Softened)	Precision Ground	00000000	00000	00000	00000
21mm	-0.025mm to 0.025mm	Annealed (Softened)	Precision Ground	00000000	00	00000	00
22mm	-0.025mm to 0.025mm	Annealed (Softened)	Precision Ground	00000000	00000	00000	000000
24mm	-0.025mm to 0.025mm	Annealed (Softened)	Precision Ground	00000000	00000	00000	000000
25mm	-0.025mm to 0.025mm	Annealed (Softened)	Precision Ground	00000000	00000	00000	000000
30mm	-0.025mm to 0.025mm	Annealed (Softened)	Precision Ground	00000000	00000	00000	000000

Hardened Undersized High-Speed M2 Tool Steel Rods

Yield Strength: See table
Hardness: Rockwell C60 (Very Hard)

These rods, also known as drill blanks, have an undersized diameter for machining your own 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.

Dia.	Dia. Tolerance	Drill Bit Size	Lg.	Yield Strength	Mechanical Finish	Straightness Tolerance		Each
1mm	-0.0050mm to 0.0000mm	1 mm	1 3/8"	261,000 psi	Precision Ground	0.012" per ft.	00000000	00000
1mm	-0.0050mm to 0.0000mm	1 mm	1 5/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
1mm	-0.0050mm to 0.0000mm	1 mm	4"	261,000 psi	Precision Ground	0.012" per ft.	00000000	0000
1.05mm	-0.0050mm to 0.0000mm	1.05 mm	1 5/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
1.1mm	-0.0050mm to 0.0000mm	1.1 mm	1 3/4"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
1.15mm	-0.0050mm to 0.0000mm	1.15 mm	1 3/4"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
1.2mm	-0.0050mm to 0.0000mm	1.2 mm	1 7/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
1.25mm	-0.0050mm to 0.0000mm	1.25 mm	1 7/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
1.3mm	-0.0050mm to 0.0000mm	1.3 mm	1 7/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
1.35mm	-0.0050mm to 0.0000mm	1.35 mm	1 7/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
1.4mm	-0.0050mm to 0.0000mm	1.4 mm	1 7/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
1.45mm	-0.0050mm to 0.0000mm	1.45 mm	1 7/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
1.5mm	-0.0050mm to 0.0000mm	1.5 mm	1 7/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
1.55mm	-0.0050mm to 0.0000mm	1.55 mm	1 7/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
1.6mm	-0.0050mm to 0.0000mm	1.6 mm	1 7/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
1.65mm	-0.0050mm to 0.0000mm	1.65 mm	2"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
1.7mm	-0.0050mm to 0.0000mm	1.7 mm	2"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
1.75mm	-0.0050mm to 0.0000mm	1.75 mm	2"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
1.8mm	-0.0050mm to 0.0000mm	1.8 mm	2"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
1.85mm	-0.0050mm to 0.0000mm	1.85 mm	2"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
1.9mm	-0.0050mm to 0.0000mm	1.9 mm	2"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
1.95mm	-0.0050mm to 0.0000mm	1.95 mm	2"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
2mm	-0.0050mm to 0.0000mm	2.0 mm	1 1/2"	261,000 psi	Precision Ground	0.012" per ft.	00000000	0000
2mm	-0.0050mm to 0.0000mm	2.0 mm	2 1/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
2mm	-0.0050mm to 0.0000mm	2.0 mm	3 3/8"	261,000 psi	Precision Ground	0.012" per ft.	00000000	0000
2.05mm	-0.0050mm to 0.0000mm	2.05 mm	2 1/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
2.1mm	-0.0050mm to 0.0000mm	2.1 mm	2 1/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
2.15mm	-0.0050mm to 0.0000mm	2.15 mm	2 1/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
2.2mm	-0.0050mm to 0.0000mm	2.2 mm	2 1/4"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
2.25mm	-0.0050mm to 0.0000mm	2.25 mm	2 1/4"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
2.3mm	-0.0050mm to 0.0000mm	2.3 mm	2 1/4"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
2.35mm	-0.0050mm to 0.0000mm	2.35 mm	2 1/4"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
2.4mm	-0.0050mm to 0.0000mm	2.4 mm	2 3/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
2.45mm	-0.0050mm to 0.0000mm	2.45 mm	2 3/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
2.5mm	-0.0050mm to 0.0000mm	2.5 mm	2 3/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
2.55mm	-0.0050mm to 0.0000mm	2.55 mm	2 1/2"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
2.6mm	-0.0050mm to 0.0000mm	2.6 mm	2 1/2"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
2.65mm	-0.0050mm to 0.0000mm	2.65 mm	2 1/2"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
2.7mm	-0.0050mm to 0.0000mm	2.7 mm	2 1/2"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
2.75mm	-0.0050mm to 0.0000mm	2.7 mm	2 5/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
2.8mm	-0.0050mm to 0.0000mm	2.8 mm	2 5/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
2.85mm	-0.0050mm to 0.0000mm	2.85 mm	2 5/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
2.9mm	-0.0050mm to 0.0000mm	2.9 mm	2 3/4"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
2.95mm	-0.0050mm to 0.0000mm	2.95 mm	2 3/4"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
3mm	-0.0050mm to 0.0000mm	3 mm	1 7/8"	261,000 psi	Precision Ground	0.012" per ft.	00000000	0000
3mm	-0.0050mm to 0.0000mm	3 mm	2 3/4"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
3mm	-0.0050mm to 0.0000mm	3 mm	4"	261,000 psi	Precision Ground	0.012" per ft.	00000000	0000
3.05mm	-0.0050mm to 0.0000mm	3.05 mm	2 3/4"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
3.1mm	-0.0050mm to 0.0000mm	3.1 mm	2 3/4"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
3.15mm	-0.0050mm to 0.0000mm	3.15 mm	2 3/4"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
3.2mm	-0.0050mm to 0.0000mm	3.2 mm	2 3/4"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
3.25mm	-0.0050mm to 0.0000mm	3.25 mm	2 3/4"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
3.3mm	-0.0050mm to 0.0000mm	3.3 mm	2 7/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
3.35mm	-0.0050mm to 0.0000mm	3.35 mm	2 7/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
3.4mm	-0.0050mm to 0.0000mm	3.4 mm	2 7/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
3.45mm	-0.0050mm to 0.0000mm	3.45 mm	2 7/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
3.5mm	-0.0050mm to 0.0000mm	3.5 mm	2 7/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
3.55mm	-0.0050mm to 0.0000mm	3.55 mm	2 7/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
3.6mm	-0.0050mm to 0.0000mm	3.6 mm	3"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
3.65mm	-0.0050mm to 0.0000mm	3.65 mm	3"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
3.7mm	-0.0050mm to 0.0000mm	3.7 mm	3"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
3.75mm	-0.0050mm to 0.0000mm	3.75 mm	3"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
3.8mm	-0.0050mm to 0.0000mm	3.8 mm	3 1/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
3.85mm	-0.0050mm to 0.0000mm	3.85 mm	3 1/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
3.9mm	-0.0050mm to 0.0000mm	3.9 mm	3 1/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
3.95mm	-0.0050mm to 0.0000mm	3.95 mm	3 1/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
4mm	-0.0050mm to 0.0000mm	4 mm	3 1/4"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
4.05mm	-0.0050mm to 0.0000mm	4.05 mm	3 1/4"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
4.1mm	-0.0050mm to 0.0000mm	4.1 mm	3 1/4"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
4.15mm	-0.0050mm to 0.0000mm	4.15 mm	3 1/4"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
4.2mm	-0.0050mm to 0.0000mm	4.2 mm	3 1/4"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
4.25mm	-0.0050mm to 0.0000mm	4.25 mm	3 1/4"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
4.3mm	-0.0050mm to 0.0000mm	4.3 mm	3 1/4"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
4.35mm	-0.0050mm to 0.0000mm	4.35 mm	3 3/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
4.4mm	-0.0050mm to 0.0000mm	4.4 mm	3 3/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
4.45mm	-0.0050mm to 0.0000mm	4.45 mm	3 3/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
4.5mm	-0.0050mm to 0.0000mm	4.5 mm	3 3/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
4.55mm	-0.0050mm to 0.0000mm	4.55 mm	3 3/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
4.6mm	-0.0050mm to 0.0000mm	4.6 mm	3 3/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
4.65mm	-0.0050mm to 0.0000mm	4.65 mm	3 1/2"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
4.7mm	-0.0050mm to 0.0000mm	4.7 mm	3 1/2"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
4.75mm	-0.0050mm to 0.0000mm	4.75 mm	3 1/2"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
4.8mm	-0.0050mm to 0.0000mm	4.8 mm	3 1/2"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
4.85mm	-0.0050mm to 0.0000mm	4.85 mm	3 1/2"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
4.9mm	-0.0050mm to 0.0000mm	4.9 mm	3 5/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
4.95mm	-0.0050mm to 0.0000mm	4.95 mm	3 5/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
5mm	-0.0050mm to 0.0000mm	5 mm	3 5/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
5.05mm	-0.0050mm to 0.0000mm	5.05 mm	3 5/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
5.1mm	-0.0050mm to 0.0000mm	5.1 mm	3 5/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
5.15mm	-0.0050mm to 0.0000mm	5.15 mm	3 3/4"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
5.2mm	-0.0050mm to 0.0000mm	5.2 mm	3 3/4"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
5.25mm	-0.0050mm to 0.0000mm	5.25 mm	3 3/4"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
5.3mm	-0.0050mm to 0.0000mm	5.3 mm	3 3/4"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
5.35mm	-0.0050mm to 0.0000mm	5.35 mm	3 3/4"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
5.4mm	-0.0050mm to 0.0000mm	5.4 mm	3 3/4"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
5.45mm	-0.0050mm to 0.0000mm	5.45 mm	3 7/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
5.5mm	-0.0050mm to 0.0000mm	5.5 mm	3 7/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
5.55mm	-0.0050mm to 0.0000mm	5.55 mm	3 7/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
5.6mm	-0.0050mm to 0.0000mm	5.6 mm	3 7/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
5.65mm	-0.0050mm to 0.0000mm	5.65 mm	3 7/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
5.7mm	-0.0050mm to 0.0000mm	5.7 mm	3 7/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
5.75mm	-0.0050mm to 0.0000mm	5.75 mm	3 7/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
5.8mm	-0.0050mm to 0.0000mm	5.8 mm	3 7/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
5.85mm	-0.0050mm to 0.0000mm	5.85 mm	3 7/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
5.9mm	-0.0050mm to 0.0000mm	5.9 mm	3 7/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
5.95mm	-0.0050mm to 0.0000mm	5.95 mm	3 7/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
6mm	-0.0050mm to 0.0000mm	6 mm	2 5/8"	261,000 psi	Precision Ground	0.012" per ft.	00000000	0000
6mm	-0.0050mm to 0.0000mm	6 mm	4"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
6mm	-0.0050mm to 0.0000mm	6 mm	8"	261,000 psi	Precision Ground	0.012" per ft.	00000000	00000
6.05mm	-0.0050mm to 0.0000mm	6.05 mm	4"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
6.1mm	-0.0050mm to 0.0000mm	6.1 mm	4"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
6.15mm	-0.0050mm to 0.0000mm	6.15 mm	4"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
6.2mm	-0.0050mm to 0.0000mm	6.2 mm	4"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
6.25mm	-0.0050mm to 0.0000mm	6.25 mm	4"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
6.3mm	-0.0050mm to 0.0000mm	6.3 mm	4"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
6.4mm	-0.0050mm to 0.0000mm	6.4 mm	4 1/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
6.5mm	-0.0050mm to 0.0000mm	6.5 mm	4 1/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
6.6mm	-0.0050mm to 0.0000mm	6.6 mm	4 1/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
6.7mm	-0.0050mm to 0.0000mm	6.7 mm	4 1/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
6.8mm	-0.0050mm to 0.0000mm	6.8 mm	4 1/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
6.9mm	-0.0050mm to 0.0000mm	6.9 mm	4 1/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
7mm	-0.0050mm to 0.0000mm	7 mm	4 1/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
7.1mm	-0.0050mm to 0.0000mm	7.1 mm	4 1/4"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
7.2mm	-0.0050mm to 0.0000mm	7.2 mm	4 1/4"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
7.3mm	-0.0050mm to 0.0000mm	7.3 mm	4 1/4"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
7.4mm	-0.0050mm to 0.0000mm	7.4 mm	4 3/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
7.5mm	-0.0050mm to 0.0000mm	7.5 mm	4 3/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
7.6mm	-0.0050mm to 0.0000mm	7.6 mm	4 3/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
7.7mm	-0.0050mm to 0.0000mm	7.7 mm	4 1/2"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
7.8mm	-0.0050mm to 0.0000mm	7.8 mm	4 1/2"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
7.9mm	-0.0050mm to 0.0000mm	7.9 mm	4 1/2"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
8mm	-0.0050mm to 0.0000mm	8 mm	3 1/8"	261,000 psi	Precision Ground	0.012" per ft.	00000000	0000
8mm	-0.0050mm to 0.0000mm	8 mm	4 1/2"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
8mm	-0.0050mm to 0.0000mm	8 mm	6 1/2"	261,000 psi	Precision Ground	0.012" per ft.	00000000	00000
8.1mm	-0.0050mm to 0.0000mm	8.1 mm	4 5/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
8.2mm	-0.0050mm to 0.0000mm	8.2 mm	4 5/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
8.3mm	-0.0050mm to 0.0000mm	8.3 mm	4 5/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
8.4mm	-0.0050mm to 0.0000mm	8.4 mm	4 3/4"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
8.5mm	-0.0050mm to 0.0000mm	8.5 mm	4 3/4"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
8.6mm	-0.0050mm to 0.0000mm	8.6 mm	4 3/4"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
8.7mm	-0.0050mm to 0.0000mm	8.7 mm	4 3/4"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
8.8mm	-0.0050mm to 0.0000mm	8.8 mm	4 7/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
8.9mm	-0.0050mm to 0.0000mm	8.9 mm	4 7/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	0000
9mm	-0.0050mm to 0.0000mm	9 mm	4 7/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	00000
9.1mm	-0.0050mm to 0.0000mm	9.1 mm	4 7/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	00000
9.2mm	-0.0050mm to 0.0000mm	9.2 mm	5"	Not Rated	Precision Ground	0.012" per ft.	00000000	00000
9.3mm	-0.0050mm to 0.0000mm	9.3 mm	5"	Not Rated	Precision Ground	0.012" per ft.	00000000	00000
9.4mm	-0.0050mm to 0.0000mm	9.4 mm	5"	Not Rated	Precision Ground	0.012" per ft.	00000000	00000
9.5mm	-0.0050mm to 0.0000mm	9.5 mm	5"	Not Rated	Precision Ground	0.012" per ft.	00000000	00000
9.6mm	-0.0050mm to 0.0000mm	9.6 mm	5 1/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	00000
9.7mm	-0.0050mm to 0.0000mm	9.7 mm	5 1/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	00000
9.8mm	-0.0050mm to 0.0000mm	9.8 mm	5 1/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	00000
9.9mm	-0.0050mm to 0.0000mm	9.9 mm	5 1/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	00000
10mm	-0.0050mm to 0.0000mm	10 mm	5 1/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	00000
10.1mm	-0.0050mm to 0.0000mm	10.1 mm	5 1/4"	Not Rated	Precision Ground	0.012" per ft.	00000000	00000
10.2mm	-0.0050mm to 0.0000mm	10.2 mm	5 1/4"	Not Rated	Precision Ground	0.012" per ft.	00000000	00000
10.3mm	-0.0050mm to 0.0000mm	10.3 mm	5 1/4"	Not Rated	Precision Ground	0.012" per ft.	00000000	00000
10.4mm	-0.0050mm to 0.0000mm	10.4 mm	5 1/4"	Not Rated	Precision Ground	0.012" per ft.	00000000	00000
10.5mm	-0.0050mm to 0.0000mm	10.5 mm	5 3/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	00000
10.6mm	-0.0050mm to 0.0000mm	10.6 mm	5 3/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	00000
10.7mm	-0.0050mm to 0.0000mm	10.7 mm	5 3/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	00000
10.8mm	-0.0050mm to 0.0000mm	10.8 mm	5 1/2"	Not Rated	Precision Ground	0.012" per ft.	00000000	00000
10.9mm	-0.0050mm to 0.0000mm	10.9 mm	5 1/2"	Not Rated	Precision Ground	0.012" per ft.	00000000	00000
11mm	-0.0050mm to 0.0000mm	11 mm	5 1/2"	Not Rated	Precision Ground	0.012" per ft.	00000000	00000
11.1mm	-0.0050mm to 0.0000mm	11.1 mm	5 1/2"	Not Rated	Precision Ground	0.012" per ft.	00000000	00000
11.2mm	-0.0050mm to 0.0000mm	11.2 mm	5 5/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	00000
11.3mm	-0.0050mm to 0.0000mm	11.3 mm	5 5/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	00000
11.4mm	-0.0050mm to 0.0000mm	11.4 mm	5 5/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	00000
11.5mm	-0.0050mm to 0.0000mm	11.5 mm	5 5/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	00000
11.6mm	-0.0050mm to 0.0000mm	11.6 mm	5 3/4"	Not Rated	Precision Ground	0.012" per ft.	00000000	00000
11.7mm	-0.0050mm to 0.0000mm	11.7 mm	5 3/4"	Not Rated	Precision Ground	0.012" per ft.	00000000	00000
11.8mm	-0.0050mm to 0.0000mm	11.8 mm	5 3/4"	Not Rated	Precision Ground	0.012" per ft.	00000000	00000
11.9mm	-0.0050mm to 0.0000mm	11.9 mm	5 3/4"	Not Rated	Precision Ground	0.012" per ft.	00000000	00000
12mm	-0.0050mm to 0.0000mm	12 mm	5 7/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	00000
12.1mm	-0.0050mm to 0.0000mm	12.1 mm	5 7/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	00000
12.2mm	-0.0050mm to 0.0000mm	12.2 mm	5 7/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	00000
12.3mm	-0.0050mm to 0.0000mm	12.3 mm	5 7/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	00000
12.4mm	-0.0050mm to 0.0000mm	12.4 mm	5 7/8"	Not Rated	Precision Ground	0.012" per ft.	00000000	00000
12.5mm	-0.0050mm to 0.0000mm	12.5 mm	6"	Not Rated	Precision Ground	0.012" per ft.	00000000	00000
12.6mm	-0.0050mm to 0.0000mm	12.6 mm	6"	Not Rated	Precision Ground	0.012" per ft.	00000000	00000
12.7mm	-0.0050mm to 0.0000mm	12.7 mm	6"	Not Rated	Precision Ground	0.012" per ft.	00000000	00000
16mm	-0.0050mm to 0.0000mm	16 mm	9"	261,000 psi	Precision Ground	0.012" per ft.	00000000	00000
20mm	-0.0050mm to 0.0000mm	20 mm	9"	261,000 psi	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. 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. These rods have been manufactured to ASTM A681 standards for performance and quality.

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.

Metric Rods

Yield Strength: 55,000 psi
Hardness: See table
Heat Treatable: Yes
Max. Hardness After Heat Treatment: Rockwell C62
Fabrication: Hot Rolled
Specifications Met: ASTM A681

Dia., mm	Dia. Tolerance, mm	Heat Treatment	Hardness	Mechanical Finish	Straightness Tolerance		1/2 ft. Lg.	1 ft. Lg.	2 ft. Lg.	3 ft. Lg.	6 ft. Lg.
2	-0.0076 to 0.0076	Annealed (Softened)	Rockwell B110	Precision Ground	0.0125" per ft.	0000000	00	00000	00	000000	000000
3	-0.0076 to 0.0076	Annealed (Softened)	Rockwell B110	Precision Ground	0.0125" per ft.	0000000	00	0000	00	00000	00000
4	-0.0127 to 0.0127	Annealed (Softened)	Rockwell B104	Precision Ground	0.0125" per ft.	0000000	00	0000	00	00000	00000
5	-0.0127 to 0.0127	Annealed (Softened)	Rockwell B104	Precision Ground	0.0125" per ft.	0000000	00	0000	00	00000	00000
6	-0.0127 to 0.0127	Annealed (Softened)	Rockwell B104	Precision Ground	0.0125" per ft.	0000000	00	0000	000000	00000	00000
7	-0.0127 to 0.0127	Annealed (Softened)	Rockwell B101	Precision Ground	0.0125" per ft.	0000000	00	0000	00	00000	00000
8	-0.0127 to 0.0127	Annealed (Softened)	Rockwell B101	Precision Ground	0.0125" per ft.	0000000	00	00000	00000	00000	00000
9	-0.0127 to 0.0127	Annealed (Softened)	Rockwell B101	Precision Ground	0.0125" per ft.	0000000	00	00000	00	00000	00000
10	-0.0127 to 0.0127	Annealed (Softened)	Rockwell B101	Precision Ground	0.0125" per ft.	0000000	00	00000	00000	00000	00000
11	-0.0127 to 0.0127	Annealed (Softened)	Rockwell B101	Precision Ground	0.0125" per ft.	0000000	00	00000	00	00000	00000
12	-0.0127 to 0.0127	Annealed (Softened)	Rockwell B101	Precision Ground	0.0125" per ft.	0000000	000000	00000	00000	00000	00000
13	-0.025 to 0.025	Annealed (Softened)	Rockwell B101	Precision Ground	0.0125" per ft.	0000000	00	00000	00	00000	000000
14	-0.025 to 0.025	Annealed (Softened)	Rockwell B101	Precision Ground	0.0125" per ft.	0000000	00	00000	00	00000	000000
15	-0.025 to 0.025	Annealed (Softened)	Rockwell B101	Precision Ground	0.0125" per ft.	0000000	00	00000	00	00000	000000
16	-0.025 to 0.025	Annealed (Softened)	Rockwell B101	Precision Ground	0.0125" per ft.	0000000	00	00000	00	00000	000000
17	-0.025 to 0.025	Annealed (Softened)	Rockwell B101	Precision Ground	0.0125" per ft.	0000000	00	00000	00	000000	000000
18	-0.025 to 0.025	Annealed (Softened)	Rockwell B101	Precision Ground	0.0125" per ft.	0000000	00	00000	00	000000	000000
19	-0.025 to 0.025	Annealed (Softened)	Rockwell B101	Precision Ground	0.0125" per ft.	0000000	00	00000	00	000000	000000
20	-0.025 to 0.025	Annealed (Softened)	Rockwell B101	Precision Ground	0.0125" per ft.	0000000	00	00000	00	000000	000000
22	-0.025 to 0.025	Annealed (Softened)	Rockwell B101	Precision Ground	0.0125" per ft.	0000000	00	00000	00	000000	000000
25	-0.025 to 0.025	Annealed (Softened)	Rockwell B96	Precision Ground	0.0125" per ft.	0000000	00	000000	00	000000	000000