System of Measurement System of Measurement  Show 


Diameter Diameter 

Length Length 

Material Material 


Tolerance Rating Tolerance Rating 


Mechanical Finish Mechanical Finish 


Hardness Hardness 


Yield Strength Yield Strength 


Certificate Certificate 

Heat Treatment Heat Treatment 


Maximum Hardness After Heat Treatment Maximum HardnessAfter Heat Treatment 


Fabrication Fabrication 


Specifications Met Specifications Met 

Drill Bit Size Drill Bit Size 


DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) 

About Tool Steel
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TightTolerance Multipurpose OilHardening 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 oilhardening material that resists wear and abrasion.
For technical drawings and 3D models, click on a part number.
Certificates with a traceable lot number are available for these products. Download certificates from ACTIVITY 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 HighSpeed 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 3D models, click on a part number.
Certificates with a traceable lot number are available for these products. Download certificates from ACTIVITY 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  0000 
9.1mm  0.0050mm to 0.0000mm  9.1 mm  4 7/8"  Precision Ground  0.012" per ft.  00000000  0000 
9.2mm  0.0050mm to 0.0000mm  9.2 mm  5"  Precision Ground  0.012" per ft.  00000000  0000 
9.3mm  0.0050mm to 0.0000mm  9.3 mm  5"  Precision Ground  0.012" per ft.  00000000  0000 
9.4mm  0.0050mm to 0.0000mm  9.4 mm  5"  Precision Ground  0.012" per ft.  00000000  0000 
9.5mm  0.0050mm to 0.0000mm  9.5 mm  5"  Precision Ground  0.012" per ft.  00000000  0000 
9.6mm  0.0050mm to 0.0000mm  9.6 mm  5 1/8"  Precision Ground  0.012" per ft.  00000000  0000 
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 
TightTolerance Multipurpose AirHardening 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 airhardening material is widely used for punches, broaches, and dies.
For technical drawings and 3D models, click on a part number.
Certificates with a traceable lot number are available for these products. Download certificates from ACTIVITY 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 