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JACOBS Taper-Mount Keyed Drill Chuck - Taper-Mount Keyed Drill Chucks
JACOBSTaper-Mount Keyed Drill Chucks

JACOBS Taper-Mount Keyed Drill Chuck

The JACOBS Drill Chuck, model JCM6309, is a taper-mount keyed drill chuck with a JT3 taper and a capacity range of 3/16 in to 51/64 in, operated by a K4 key. This industrial tool is designed for secure bit retention…

SKU 3G-OTH-251546

Also listed as: JCM 6309 · JCM-6309

Brand
JACOBS
Item
Taper-Mount Keyed Drill Chuck
Category
Taper-Mount Keyed 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
JCM6309

Technical Documents

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

Product Description

The JACOBS Drill Chuck, model JCM6309, is a taper-mount keyed drill chuck with a JT3 taper and a capacity range of 3/16 in to 51/64 in, operated by a K4 key. This industrial tool is designed for secure bit retention in drilling applications.

Frequently Asked Questions

What is the JACOBS JCM6309 drill chuck used for?

The JACOBS JCM6309 is a taper-mount keyed drill chuck used for secure bit retention in industrial drilling applications. Its JT3 taper and 3/16 in to 51/64 in capacity make it suitable for precision work in machining, metalworking, and assembly operations where reliable grip is critical.

What are the specifications of the JACOBS JCM6309 drill chuck?

The JACOBS JCM6309 is a taper-mount keyed drill chuck with a JT3 taper, capacity range of 3/16 in to 51/64 in, and uses a K4 key for tightening. The manufacturer part number is JCM6309. It is designed for industrial drilling applications requiring secure bit retention.

Where to buy the JACOBS JCM6309 drill chuck worldwide?

3G Electric supplies the JACOBS JCM6309 drill chuck worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver this taper-mount keyed chuck to your facility. Contact us for pricing and lead time on this JACOBS model.

How to install a JACOBS JCM6309 taper-mount drill chuck?

To install the JACOBS JCM6309, clean the JT3 taper on both the chuck and spindle, then firmly press the chuck onto the spindle using a drill press arbor or soft-faced hammer. Ensure the K4 key is used to tighten the jaws around the bit. Always follow the 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 taper-mount keyed 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
Thread-mount keyed drill chuck with 5/8"-16 mounting thread. Capacity range from 3/16" to 51/64". Uses K4 key for tightening. Suitable for holding drill bits in industrial drilling applications
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Thread-mount keyed drill chuck with 5/8"-16 mounting thread. Capacity range from 3/16" to 51/64". Uses K4 key for tightening. Suitable for holding drill bits in industrial drilling applications
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Thread-mount keyed drill chuck with 3/4"-16 mounting thread. Capacity range from 3/16" to 51/64". Uses K4 key for tightening. Suitable for holding drill bits in drilling operations
This JACOBS drill chuck features a slot-drive design with a JT33 taper mount for secure attachment to compatible spindles. It accommodates bit capacities from 5/64 in to 1/2 in and is operated using a K32 key. Suitable for general drilling tasks in metalworking and woodworking applications
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This JACOBS drill chuck features a slot-drive design with a JT33 taper mount for secure attachment to compatible spindles. It accommodates bit capacities from 5/64 in to 1/2 in and is operated using a K32 key. Suitable for general drilling tasks in metalworking and woodworking applications
Thread-mount keyed drill chuck with 5/8"-16 mounting thread and 1/8 in to 5/8 in capacity. Includes K3 key for tightening. Used for holding drill bits in drill presses, lathes, and other rotating machinery for metalworking, woodworking, and general industrial applications
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Thread-mount keyed drill chuck with 5/8"-16 mounting thread and 1/8 in to 5/8 in capacity. Includes K3 key for tightening. Used for holding drill bits in drill presses, lathes, and other rotating machinery for metalworking, woodworking, and general industrial applications

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This taper-mount keyed drill chuck features a JT6 taper for mounting on compatible spindles. It accommodates bit shanks from 3/64 in to 1/2 in and includes a K3 key for secure tightening. Suitable for general drilling applications in metalworking and woodworking
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This taper-mount keyed drill chuck features a JT6 taper for mounting on compatible spindles. It accommodates bit shanks from 3/64 in to 1/2 in and includes a K3 key for secure tightening. Suitable for general drilling applications in metalworking and woodworking
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This taper-mount keyed drill chuck features a JT33 taper and a capacity range of 3/64 in to 1/2 in. It is operated with a K3C key for tightening and loosening. Suitable for use in industrial drilling machines for metalworking, woodworking, and general machining applications
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