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JACOBS Drill Chuck: 3/8"-24, 3/64 in to 3/8 in Capacity - Thread-Mount Keyed Drill Chucks for Portable Power Tools
JACOBSThread-Mount Keyed Drill Chucks for Portable Power Tools

JACOBS Drill Chuck: 3/8"-24, 3/64 in to 3/8 in Capacity

The JACOBS Drill Chuck, model 31138, is a thread-mount keyed drill chuck for portable power tools. It features a 3/8"-24 thread mount and a capacity range of 3/64 in to 3/8 in, operated with a K30 key.

SKU 3G-OTH-250316

Brand
JACOBS
Item
Drill Chuck: 3/8"-24, 3/64 in to 3/8 in Capacity
Category
Thread-Mount Keyed Drill Chucks for Portable Power Tools
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Technical Specifications

JACOBS
Manufacturer Part Number
31138
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JACOBS Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The JACOBS Drill Chuck, model 31138, is a thread-mount keyed drill chuck for portable power tools. It features a 3/8"-24 thread mount and a capacity range of 3/64 in to 3/8 in, operated with a K30 key.

Frequently Asked Questions

What is the JACOBS Drill Chuck 31138 used for?

The JACOBS Drill Chuck 31138 is a thread-mount keyed chuck designed for portable power tools. It securely holds drill bits from 3/64 in to 3/8 in diameter, making it suitable for drilling in metal, wood, and plastic during maintenance, fabrication, and construction applications.

What are the specifications of the JACOBS Drill Chuck 31138?

The JACOBS Drill Chuck 31138 has a 3/8"-24 thread mount and a capacity range of 3/64 in to 3/8 in. It uses a K30 key for tightening. The manufacturer part number is 31138, and it is a keyed drill chuck for portable power tools.

Where to buy the JACOBS Drill Chuck 31138 worldwide?

You can source the JACOBS Drill Chuck 31138 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 a JACOBS thread-mount drill chuck?

To install a JACOBS thread-mount drill chuck like the 31138, first ensure the spindle threads are clean. Screw the chuck onto the 3/8"-24 threaded spindle by hand, then tighten with the K30 key. Always disconnect power before installation and follow the tool manufacturer's instructions.

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 thread-mount keyed drill chucks for portable power tools. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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