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.
Dia. | Dia. Tolerance | Drill Bit Size | Lg. | Yield Strength | Mechanical Finish | Straightness Tolerance | Each | |
7/16" | -0.0002" to 0" | 7/16" | 5 1/2" | Not Rated | Precision Ground | 0.012" per ft. | 00000000 | 000000 |
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 |
Hardened Oversized High-Speed M2 Tool Steel Rods

- Yield Strength: Not Rated
- Hardness: Rockwell C60 (Very Hard)
Also known as reamer blanks, these rods have an oversized diameter that allows for finishing to your exact requirements. 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.
Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
Dia. | Dia. Tolerance | Reamer Size | Lg. | Lg. Tolerance | Mechanical Finish | Straightness Tolerance | Each | |
0.4375" | 0" to 0.0002" | 7/16" | 5 1/2" | -1/32" to 1/32" | Precision Ground | 0.012" per ft. | 00000000 | 000000 |
Hardened High-Speed M42 Tool Steel

- Yield Strength: Not Rated
- Hardness: Rockwell C65 (Very Hard)
Also known as cobalt steel, this M42 tool steel maintains its hardness in high-speed cutting applications that generate intense heat. Use it to make tools for cutting extremely hard materials.
Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
Dia. | Dia. Tolerance | Lg. | Mechanical Finish | Each | |
7/16" | -0.0002" to 0" | 5 1/2" | Precision Ground | 0000000 | 000000 |
Drill Guides

Place on your workpiece to drill precise holes without building a fixture.
For Drill Bit Size | For Drill Bit Size Decimal Equivalent | Lg. | Wd. | Ht. | Material | Each | |
1/8", 9/64", 5/32", 11/64", 3/16", 13/64", 7/32", 15/64", 1/4", 17/64", 9/32", 19/64", 5/16", 21/64", 11/32", 23/64", 3/8" | 0.125", 0.1406", 0.1563", 0.1719", 0.1875", 0.2031", 0.2188", 0.2344", 0.25", 0.2656", 0.2813", 0.2969", 0.3125", 0.3281", 0.3438", 0.3594", 0.375" | 5 1/2" | 3/4" | 7/8" | Steel | 0000000 | 000000 |
3 mm, 3.3 mm, 3.5 mm, 4 mm, 4.2 mm, 4.5 mm, 5 mm, 5.5 mm, 6 mm, 6.5 mm, 6.8 mm, 7 mm, 7.5 mm, 8 mm, 8.5 mm, 9 mm, 9.5 mm | 0.1181", 0.1299", 0.1378", 0.1575", 0.1654", 0.1772", 0.1968", 0.2165", 0.2362", 0.2559", 0.2677", 0.2756", 0.2953", 0.315", 0.3346", 0.3543", 0.374" | 5 1/2" | 3/4" | 7/8" | Steel | 0000000 | 00000 |