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Jacobs 33BA keyed drill chuck half inch silver metal

Jacobs

Jacobs 33BA .500 In Keyed Drill Chuck

SKU CH-BQ6Z-99SFE MPN 33BA

A keyed drill chuck with a .500 in capacity and fully hardened components for high accuracy and durability

  • TypeHammer Drill Accessories
  • Industrial-grade accuracy from fully hardened and ground components
  • .500 inch capacity handles medium to heavy-duty drilling tasks
  • Model 33BA built for portable, bench or floor-mounted tools
  • Plain bearing design delivers strong gripping power and durability
  • Jacobs quality trusted for wide range of power tool spindles

Industrial Chuck for Demanding Work

The Jacobs 33BA is a plain bearing chuck built for medium or heavy-duty portable, bench or floor mounted power tools. Fully hardened and ground components deliver high accuracy and strong gripping power. It suits professional workshops and serious DIY users who need reliable bit retention.

Verify Spindle Fit Before Purchase

Confirm that your tool uses a compatible spindle mount, either threaded or taper, as the chuck is offered in both configurations. The .500 in capacity sets the maximum shank size it can accept. Ensure the mounting style matches your drill or press exactly.

Low Maintenance Operation

The plain bearing design runs without internal rolling elements, reducing mechanical complexity during normal drilling and hammer drilling tasks. Hardened jaws resist wear from high torque and vibration. No special cooling or lubrication routine is required for typical use.

Highlights

  • Industrial-grade accuracy from fully hardened and ground components
  • .500 inch capacity handles medium to heavy-duty drilling tasks
  • Model 33BA built for portable, bench or floor-mounted tools
  • Plain bearing design delivers strong gripping power and durability
  • Jacobs quality trusted for wide range of power tool spindles

Specifications

BrandJacobs
Model33BA 1/2
TypeHammer Drill Accessories

Questions about this item

Does the Jacobs 33BA chuck come with a chuck key or must I buy one separately?

The chuck uses a standard keyed design; a compatible chuck key is required for operation and is typically sold separately.

The model is listed as 33BA .500 In — does that mean the maximum bit shank diameter is 1/2 inch?

Yes, the .500 In designation indicates a 1/2 inch capacity, so it accepts drill bits with shanks up to 1/2 inch in diameter.

How does the plain-bearing construction affect run-out and grip when the chuck is mounted on a hammer drill?

Fully hardened and ground components deliver high accuracy and strong gripping power, keeping run-out low even under the heavy vibration of hammer drilling.

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