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    4 Products

    Undersized Hardened Multipurpose M2 High-Speed Tool Steel Rods

    Image of Product. Front orientation. Steel. Undersized Hardened Multipurpose M2 High-Speed Tool Steel Rods.
    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.
    Material Certificate Icon
    Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
    Dia.,
    mm
    Dia. Tolerance,
    mm
    Drill Bit
    Size, mm
    Lg.
    Yield
    Strength
    Hardness
    Mechanical
    Finish
    Each
    6.4-0.005 to 06.4
    		4 1/8"Not RatedRockwell C60 (Extra Hard)Precision Ground2900A34100000

    Partially Grooved Dowel Pins

    The grooved section secures these pins while the smooth portion is free to act as a pivot or hinge. The grooves pinch shut when installed, creating tension to lock in place. They fit tighter than standard dowel pins and resist pulling from movement and vibration, even in imperfect holes.
    For the best fit, drill your hole slightly larger than the nominal diameter shown.
    Half Grooved
    Image of ProductInUse. Front orientation. Dowel Pins. Plain Head, Standard Tolerance, Partially Grooved, Half Grooved.
    Image of Product. Front orientation. Dowel Pins. Plain Head, Standard Tolerance, Partially Grooved, Half Grooved, Tapered Groove.

    Tapered Groove

    The most versatile partially grooved pins, these are used in a range of applications, including as rod end linkages, stop pins, and locators. Also known as type H pins.
    Zinc-Plated Carbon Steel—These pins withstand occasional exposure to moisture. However, since friction from moving parts can wear away the finish, they're not ideal for wet environments. While not nearly as corrosion resistant as stainless steel, they are stronger and won’t deform under stress.
    Tapered Groove—Easier to install than pins with parallel grooves but less secure in high-vibration applications.
    Nominal,
    mm
    Max., mm
    Lg.,
    mm
    Dia.
    Dia.
    Tolerance
    Dia.
    Dia.
    Tolerance
    Groove
    Type
    Double Shear Breaking
    Strength, lbf
    Min.
    Hardness
    Groove
    Lg., mm
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    Zinc-Plated Carbon Steel
     
    6 mm Diameter
    266-0.075 to 06.4-0.05 to 0.05Tapered5,700Rockwell B6813ISO 87451098400A746000000
    306-0.075 to 06.4-0.05 to 0.05Tapered5,700Rockwell B6815ISO 87451098400A74700000
    406-0.075 to 06.4-0.05 to 0.05Tapered5,700Rockwell B6820ISO 87451098400A74800000
     
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