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JACOBS Drill Chuck Key: Thumb Handle, KK - Self-Ejecting Keys for Jacobs Drill Chucks
JACOBSSelf-Ejecting Keys for Jacobs Drill Chucks

JACOBS Drill Chuck Key: Thumb Handle, KK

The JACOBS Drill Chuck Key with Thumb Handle, model JCM3157P, is a self-ejecting key for Jacobs drill chucks. It features a KK type and a 9/32 in pilot. This key is identified by manufacturer part number JCM3157P and…

SKU 3G-OTH-278998

Brand
JACOBS
Item
Drill Chuck Key: Thumb Handle, KK
Category
Self-Ejecting Keys for Jacobs Drill Chucks
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Technical Specifications

JACOBS
Manufacturer Part Number
JCM3157P

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

Product Description

The JACOBS Drill Chuck Key with Thumb Handle, model JCM3157P, is a self-ejecting key for Jacobs drill chucks. It features a KK type and a 9/32 in pilot. This key is identified by manufacturer part number JCM3157P and reference 74K.

Frequently Asked Questions

What is the JACOBS Drill Chuck Key JCM3157P used for?

The JACOBS Drill Chuck Key JCM3157P is a self-ejecting key designed for tightening and loosening Jacobs drill chucks on industrial drilling machines. Its thumb handle and 9/32 in pilot allow quick chuck adjustments in metalworking, woodworking, and assembly operations where secure bit retention is critical.

What are the specifications of the JACOBS Drill Chuck Key JCM3157P?

The JACOBS Drill Chuck Key JCM3157P has a KK type, a 9/32 in pilot, and a thumb handle for manual operation. It is a self-ejecting key for Jacobs drill chucks, identified by manufacturer part number JCM3157P and reference 74K. The key is made by JACOBS and designed for industrial drilling applications.

Where to buy the JACOBS Drill Chuck Key JCM3157P worldwide?

3G Electric supplies the JACOBS Drill Chuck Key JCM3157P worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your facility. Contact us for availability and lead time on this self-ejecting key with thumb handle and 9/32 in pilot.

How to select the correct JACOBS drill chuck key?

To select the correct JACOBS drill chuck key, match the pilot size (e.g., 9/32 in for JCM3157P) and type (KK) to your chuck's specifications. Ensure the key is self-ejecting if your chuck requires that feature. For JACOBS chucks, always verify the manufacturer part number and reference, such as 74K, to guarantee proper fit and 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 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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Compatible alternatives & equivalents

Cross-referenced by specification & description
LYNDEX-NIKKEN Drill Chuck Arbor: R8 to JT3 (MPN 870-003-0.13)
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LYNDEX-NIKKEN Drill Chuck Arbor: R8 to JT3 (MPN 870-003-0.13)
LYNDEX-NIKKEN Drill Chuck Arbor: NMTB40 to JT2 (MPN N4003-0002-0.65)
LYNDEX-NIKKEN
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)
LYNDEX-NIKKEN
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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