Even when exposed to moisture and chemicals, these stainless steel chucks maintain smooth, precise operation. They’re keyed, so their jaw locks securely around bits—use the included key to tighten and loosen their hold. Thanks to their grip, they’re great for high-torque, low-speed drilling in hard materials. Mount them to the threaded spindles of hand-held drills. For machines without spindles, mount them to a threaded drill chuck arbor.

A through hole allows long bits to pass through without hitting the back of the chuck. They can also be used on an electrical discharge machine (EDM) to hold electrodes and let fluid pass through.

To maximize grip and minimize runout, choose a chuck where your drill bit diameter falls in the middle of the bit shank size range.

Jacobs chucks are the most widely used drill chucks. They don’t contain lubricant, so they won’t contaminate your work area or accumulate dust. They’re great for sensitive areas, such as medical environments.

Made of stainless steel, these chucks maintain smooth, precise operation even when exposed to moisture and chemicals. They’re keyed, so their jaw locks securely around bits—use the included key to tighten and loosen their hold. Thanks to their grip, they’re great for high-torque, low-speed drilling in hard materials. Mount them to Jacobs taper arbors on equipment ranging from hand-held drills to drill presses.

A through hole allows long bits to pass through without hitting the back of the chuck. They can also be used on an electrical discharge machine (EDM) to hold electrodes and let fluid pass through.

To maximize grip and minimize runout, choose a chuck where your drill bit diameter falls in the middle of the bit shank size range.

Jacobs chucks are the most widely used drill chucks. They don’t contain lubricant, so they won’t contaminate your work area or accumulate dust. They’re great for sensitive areas, such as medical environments.

Secure these chucks to the slot-drive tapered spindles on older drills and mud mixers. Their slot-drive design locks these chucks onto your tool, so they won’t slip on the spindle, no matter how often you start, stop, or reverse. They hold bits just as tightly—use the included key to tighten or loosen the jaws. These chucks are built for tough jobs, like drilling through hard materials and mixing thick slurries. For a long life and improved accuracy, they have a one-piece sleeve, center-ground jaws, and hardened wear points. They’re also known as positive-drive drill chucks.

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 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. They grip bits tighter and stay accurate longer than medium duty chucks when under heavy loads.

Also known as positive-drive drill chucks, these chucks mount to the pin-drive tapered spindles on mud mixers and older drills. Their pin-drive design locks these chucks onto your tool, so they won’t slip on the spindle, no matter how often you start, stop, or reverse. They grip bits just as tightly—use the included key to tighten or loosen the jaws. These heavy duty chucks are larger and heavier than medium duty chucks, so they provide a more rigid hold under high torque. They’re made for tough jobs, like drilling through hard materials and mixing thick slurries. For a long life and improved accuracy, they have a one-piece sleeve, center-ground jaws, and hardened wear points.