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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 | |
2.1mm | -0.0050mm to 0.0000mm | 2.1 mm | 2 1/8" | Precision Ground | 0.012" per ft. | 00000000 | 00000 |
Center-Groove Dowel Pins


Center-groove pins are often used in place of clevis pins or to create T-handles. The grooves pinch shut when pressed into a hole, creating tension and holding the pin in place. The grooved center locks pins in position, while the smooth ends act as a pivot. For the best fit, the hole should be equal to or slightly larger than the diameter shown. The ends are chamfered for easy insertion. Pins are made of zinc-plated steel for good strength and some corrosion resistance. Breaking strength is measured as double shear, which is the force required to break a pin into three pieces. Also known as type E pins.
For technical drawings and 3-D models, click on a part number.
Lg. | Dia. (A) | Dia. (A) Tolerance | Dia. (B) | Dia. (B) Tolerance | Groove Lg. | Breaking Strength, lbs. | Specifications Met | Pkg. Qty. | Pkg. | |
Zinc-Plated 12L13 Carbon Steel with Parallel Grooves | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
2mm Dia. | ||||||||||
12mm | 2mm | -0.025mm to 0mm | 2.1mm | 0mm to 0.05mm | 4mm | 600 | ISO 8742 | 10 | 00000000 | 00000 |
Half-Groove Dowel Pins


These pins make good hinges or pivots. The grooves pinch shut when pressed into a hole, creating tension and holding the pin in place. The grooved half locks pins in position, while the smooth half acts as a pivot. For the best fit, the hole should be equal to or slightly larger than the diameter shown. The ends are chamfered for easy insertion. Pins are made of zinc-plated steel for good strength and some corrosion resistance. Breaking strength is measured as double shear, which is the force required to break a pin into three pieces. Also known as type H pins.
Reverse-tapered pins are useful when the ungrooved portion will act as a stop or handle.
For technical drawings and 3-D models, click on a part number.
Lg. | Dia. (A) | Dia. (A) Tolerance | Dia. (B) | Dia. (B) Tolerance | Groove Lg. | Breaking Strength, lbs. | Specifications Met | Pkg. Qty. | Pkg. | |
Dowel Pins with Reverse-Tapered Groove—Zinc-Plated12L13 Carbon Steel | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
2mm Dia. | ||||||||||
8mm | 2mm | -0.025mm to 0mm | 2.1mm | 0mm to 0.05mm | 4mm | 600 | ISO 8741 | 10 | 000000000 | 00000 |