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JACOBS Drill Chuck Key: K3C - Self-Ejecting Keys for Jacobs Drill Chucks
JACOBSSelf-Ejecting Keys for Jacobs Drill Chucks

JACOBS Drill Chuck Key: K3C

The JACOBS Drill Chuck Key: K3C, 5/16 in Pilot (MPN JCM2948P) is a self-ejecting key designed for Jacobs drill chucks. It features a 5/16 in pilot size and is identified by the manufacturer part number JCM2948P.

SKU 3G-OTH-278999

Brand
JACOBS
Item
Drill Chuck Key: K3C
Category
Self-Ejecting Keys for Jacobs Drill Chucks
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Technical Specifications

JACOBS
Manufacturer Part Number
JCM2948P

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

Product Description

The JACOBS Drill Chuck Key: K3C, 5/16 in Pilot (MPN JCM2948P) is a self-ejecting key designed for Jacobs drill chucks. It features a 5/16 in pilot size and is identified by the manufacturer part number JCM2948P.

Frequently Asked Questions

What is the JACOBS Drill Chuck Key K3C used for?

The JACOBS Drill Chuck Key K3C (MPN JCM2948P) is a self-ejecting key used to tighten or loosen Jacobs drill chucks on industrial drilling machines. It is designed for applications requiring a 5/16 in pilot size, common in machining and metalworking operations.

What are the specifications of the JACOBS Drill Chuck Key K3C?

The JACOBS Drill Chuck Key K3C has a 5/16 in pilot size and is identified by manufacturer part number JCM2948P. It is a self-ejecting key designed for Jacobs drill chucks, ensuring secure engagement and easy removal during drilling operations.

Where to buy the JACOBS Drill Chuck Key K3C worldwide?

3G Electric supplies the JACOBS Drill Chuck Key K3C (JCM2948P) worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver this self-ejecting key to your facility, supporting machining and maintenance operations across industries.

How to select the correct JACOBS drill chuck key?

To select the correct JACOBS drill chuck key, match the pilot size to your chuck's socket—the K3C uses a 5/16 in pilot. Verify the manufacturer part number (JCM2948P) and ensure the key is self-ejecting for your model. Consult your chuck's documentation or contact 3G Electric for guidance.

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 self-ejecting keys for jacobs 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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LYNDEX-NIKKEN Drill Chuck Arbor: NMTB40 to JT2 (MPN N4003-0002-0.65)
LYNDEX-NIKKEN Drill Chuck: CT40, 5/16 in Capacity, Ball Bearing (MPN CAT40-NPU8-110U)
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LYNDEX-NIKKEN Drill Chuck: CT40, 5/16 in Capacity, Ball Bearing (MPN CAT40-NPU8-110U)
LYNDEX-NIKKEN Drill Chuck: CAT40, 5/16 in Capacity, Ball Bearing (MPN CAT40-NPU8-80U)
LYNDEX-NIKKEN
LYNDEX-NIKKEN Drill Chuck: CAT40, 5/16 in Capacity, Ball Bearing (MPN CAT40-NPU8-80U)

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