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    2 Products

    Thread-Mount Keyed Drill Chucks

    Image of Product. Front orientation. Drill Chucks. Thread-Mount Keyed Drill Chucks.
    Image of Product. Threaded Mount. Top orientation. ZoomedIn view. Contains Border. Drill Chucks. Thread-Mount Keyed Drill Chucks.

    Threaded Mount

    Thread these chucks onto the spindle of portable drills and stationary machines to hold bits. They're a keyed chuck, so they hold the bit tightly, preventing it from slipping under load. Use the included key to tighten and loosen the jaws. If your machine doesn’t have a threaded spindle, mount them with a threaded drill chuck arbor.
    To maximize grip and minimize wobble, choose a chuck where your drill bit diameter falls in the middle of the shank size range.
    Heavy Duty—Heavy duty chucks give you the rigidity and heft needed for high-torque drilling in hardened metal. Their extra mass means they resist vibration and fluctuating cutting forces to keep your bit stable. While they share all of the same features as medium duty chucks—one-piece sleeve, center-ground jaws, and hardened wear points—they grip bits tighter and stay accurate longer under heavy loads.
    Drill Chucks
    Replacement Jaw
    and Nut Sets
    Chuck
    Key
    Mounting Hole
    Thread Size
    For Bit Shank
    Size
    Duty
    Rating
    Wt.,
    lb.
    Total Indicated Runout
    (TIR) Accuracy
    Included
    No.
    Jaw
    Material
    Body
    Material
    For Use With
    For Tool Drive Direction
    Mfr. Model
    No.
    Each
    Each
    Jacobs—Plain Bearing
     
    Keyed Chuck
    1/2"-20
    		1/8" to 5/8"
    3 mm to 16 mm    		Heavy2.30.004"YesK3SteelSteelDrill Presses
    Handheld Power Drills
    Lathes    		Clockwise, Counterclockwise3B 1/22812A6600000002812A86000000
     
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