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Thread-Mount Keyed Drill Chucks
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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.
Chuck Key | |||||||||||||||
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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 | |||
Jacobs—Plain Bearing | |||||||||||||||
Keyed Chuck | |||||||||||||||
| 3/8"-24 | 0.04" to 1/4" 1 mm to 6.5 mm | Heavy | 0.4 | 0.004" | Yes | K7 | Steel | Steel | Drill Presses Handheld Power Drills Lathes | Clockwise, Counterclockwise | 7BA 3/8 | 2812A84 | 0000000 | ||
EachIn stock | |||||||||||||||
