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JACOBS Ratchet-Locking Thread-Mount Keyless Drill Chuck - Ratchet-Locking Thread-Mount Keyless Drill Chucks
JACOBSRatchet-Locking Thread-Mount Keyless Drill Chucks

JACOBS Ratchet-Locking Thread-Mount Keyless Drill Chuck

The JACOBS Drill Chuck (MPN JCM31038) is a ratchet-locking thread-mount keyless drill chuck with a 1/2"-20 thread mount and a capacity range of 1/16 in to 1/2 in. This product is manufactured by JACOBS.

SKU 3G-OTH-405127

Also listed as: JCM 31038 · JCM-31038

Brand
JACOBS
Item
Ratchet-Locking Thread-Mount Keyless Drill Chuck
Category
Ratchet-Locking Thread-Mount Keyless Drill Chucks
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

JACOBS
Manufacturer Part Number
JCM31038

Technical Documents

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JACOBS Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The JACOBS Drill Chuck (MPN JCM31038) is a ratchet-locking thread-mount keyless drill chuck with a 1/2"-20 thread mount and a capacity range of 1/16 in to 1/2 in. This product is manufactured by JACOBS.

Frequently Asked Questions

What is the JACOBS Drill Chuck JCM31038 used for?

The JACOBS Drill Chuck JCM31038 is used for gripping drill bits in industrial drilling applications. Its ratchet-locking thread-mount design provides secure bit retention without a key, making it suitable for production environments where quick bit changes are needed.

What are the specifications of the JACOBS Drill Chuck JCM31038?

The JACOBS Drill Chuck JCM31038 has a 1/2"-20 thread mount and a capacity range of 1/16 in to 1/2 in. It is a ratchet-locking keyless drill chuck, manufactured by JACOBS under MPN JCM31038. These specs define its compatibility with standard drill spindles.

Where to buy the JACOBS Drill Chuck JCM31038 worldwide?

You can source the JACOBS Drill Chuck JCM31038 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 thread-mount keyless drill chuck?

To install a thread-mount keyless drill chuck like the JACOBS JCM31038, clean the spindle threads, then hand-tighten the chuck onto the 1/2"-20 thread mount. Use the ratchet-locking mechanism to secure it firmly. Always follow the manufacturer's torque recommendations 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 ratchet-locking thread-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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Compatible alternatives & equivalents

Cross-referenced by specification & description
This keyless drill chuck features a 1/4" hex shank for use with impact drivers and drill drivers. The ratchet-locking mechanism provides secure bit retention, while the ball bearing construction enables smooth one-handed operation. Capacity ranges from 1/16" to 3/8" for small to medium bits
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This keyless drill chuck features a 1/4" hex shank for use with impact drivers and drill drivers. The ratchet-locking mechanism provides secure bit retention, while the ball bearing construction enables smooth one-handed operation. Capacity ranges from 1/16" to 3/8" for small to medium bits
JACOBS Drill Chuck: 1/2"-20, 3/64 in to 3/8 in Capacity, K32 Key (MPN JCM8859)
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JACOBS Drill Chuck: 1/2"-20, 3/64 in to 3/8 in Capacity, K32 Key (MPN JCM8859)
JACOBS Drill Chuck: 1/2"-20, 1/32 in to 33/64 in Capacity, Ball Bearing (MPN 33363D)
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JACOBS Drill Chuck: 1/2"-20, 1/16 in to 1/2 in Capacity, KK Key (MPN 30602)
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JACOBS Drill Chuck: 1/2"-20, 1/16 in to 1/2 in Capacity, KK Key (MPN 30602)
Thread-mount keyed drill chuck with 1/2"-20 mounting thread and capacity range from 5/64 in to 1/2 in. Includes K32 key for tightening. Used for holding drill bits in drilling operations on machine tools
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Thread-mount keyed drill chuck with 1/2"-20 mounting thread and capacity range from 5/64 in to 1/2 in. Includes K32 key for tightening. Used for holding drill bits in drilling operations on machine tools
This thread-mount keyed drill chuck is designed for portable power tools. It features a 1/2"-20 thread mount and accommodates drill bits from 3/64" to 3/8" in capacity. The chuck is operated with a K30 key for secure bit tightening, suitable for general drilling applications requiring precise bit retention
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This thread-mount keyed drill chuck is designed for portable power tools. It features a 1/2"-20 thread mount and accommodates drill bits from 3/64" to 3/8" in capacity. The chuck is operated with a K30 key for secure bit tightening, suitable for general drilling applications requiring precise bit retention

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