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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 | |
4.35mm | -0.0050mm to 0.0000mm | 4.35 mm | 3 3/8" | Precision Ground | 0.012" per ft. | 00000000 | 00000 |
Full-Groove Dowel Pins
Grooves run the full length of these pins for a firm hold that won't spin. Use them in place of standard dowel, spring, and taper pins to fasten parts. The three grooves pinch shut when pressed into a hole, creating tension to lock pins in place. For the best fit, the hole should be equal to or slightly larger than the diameter shown. The ends are chamfered for easy insertion. Breaking strength is measured as double shear, which is the force required to break a pin into three pieces. Also known as type A pins.
Pins with tapered grooves are easier to install than pins with parallel grooves, but more likely to loosen from vibration. Pins that meet ISO 8744 comply with international standards for tapered-groove metric dowel pins.
Zinc-plated steel pins have good strength and some corrosion resistance.
For technical drawings and 3-D models, click on a part number.
Lg., mm | Dia. (A), mm | Dia. (A) Tolerance, mm | Dia. (B), mm | Dia. (B) Tolerance, mm | Breaking Strength, lbs. | Groove Style | Specifications Met | Pkg. Qty. | Pkg. | |
4 mm Dia. | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
18 | 4 | -0.075 to 0 | 4.35 | -0.05 to 0.05 | 1,400 | Tapered | ISO 8744 | 10 | 00000000 | 00000 |