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JACOBS Drill Chuck: JT1, 1/64 in to 1/4 in Capacity - High-Precision Taper-Mount Keyless Drill Chucks
JACOBSHigh-Precision Taper-Mount Keyless Drill Chucks

JACOBS Drill Chuck: JT1, 1/64 in to 1/4 in Capacity

The JACOBS Drill Chuck, model 31121D, is a high-precision taper-mount keyless drill chuck with a JT1 taper and a capacity range of 1/64 in to 1/4 in. It features a ball bearing design for smooth operation. This…

SKU 3G-OTH-251107

Brand
JACOBS
Item
Drill Chuck: JT1, 1/64 in to 1/4 in Capacity
Category
High-Precision Taper-Mount Keyless Drill Chucks
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Technical Specifications

JACOBS
Manufacturer Part Number
31121D
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JACOBS Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The JACOBS Drill Chuck, model 31121D, is a high-precision taper-mount keyless drill chuck with a JT1 taper and a capacity range of 1/64 in to 1/4 in. It features a ball bearing design for smooth operation. This product is manufactured by JACOBS under part number 31121D.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the JACOBS Drill Chuck 31121D used for?

The JACOBS 31121D is a high-precision taper-mount keyless drill chuck used for gripping drill bits and rotary tools in industrial drilling applications. Its JT1 taper mounts directly onto compatible spindles, and the ball bearing design ensures smooth, accurate operation at high speeds.

What are the specifications of the JACOBS Drill Chuck 31121D?

The JACOBS 31121D has a JT1 taper mount and a capacity range of 1/64 in to 1/4 in. It is a keyless, ball-bearing drill chuck designed for high-precision work. The manufacturer part number is 31121D, and it is made by JACOBS.

Where to buy the JACOBS Drill Chuck 31121D worldwide?

You can source the JACOBS 31121D drill chuck through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time.

How to install the JACOBS Drill Chuck 31121D?

To install the JACOBS 31121D, clean the JT1 taper on both the chuck and spindle, then firmly press the chuck onto the spindle using a soft-faced hammer or arbor press. Ensure the taper seats fully for concentricity. Always follow the machine manufacturer's instructions for safe operation.

Used in

Common applications for JACOBS
General machining – JACOBS keyed drill chucks (e.g., MPN JCM6214, JT2 mount) for manual drill presses and milling machines.
Production drilling – JACOBS high-precision keyless chucks (e.g., MPN 31415, MT4) for automated CNC drilling centers.
Corrosive environment toolholding – JACOBS stainless steel chucks (e.g., MPN JCM6624Z) for food processing or chemical plant maintenance.
Spindle adaptation – JACOBS Morse taper sleeves (e.g., MPN 30427DN) for retrofitting older machine tools with modern chucks.
Portable drilling – JACOBS thread-mount chucks (e.g., MPN JCM6204, 5/16-24) for hand-held electric drills and magnetic base drills.

JACOBS Products

3G Electric supplies JACOBS high-precision taper-mount keyless drill chucks. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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