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JACOBS Morse Taper Sleeve MT4 to MT6, 8 1/2 in Overall Length - Morse Taper Sleeves
JACOBSMorse Taper Sleeves

JACOBS Morse Taper Sleeve MT4 to MT6, 8 1/2 in Overall Length

The JACOBS Morse Taper Drill Sleeve (MPN 30639N) is a Morse Taper Sleeve that adapts from an MT4 to an MT6 taper, with an overall length of 8 1/2 inches. Manufactured by JACOBS, this sleeve enables the use of…

SKU 3G-OTH-314107

Also listed as: 30639 N · 30639-N

Brand
JACOBS
Item
Morse Taper Sleeve MT4 to MT6, 8 1/2 in Overall Length
Category
Morse Taper Sleeves
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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
30639N

Technical Documents

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

Product Description

The JACOBS Morse Taper Drill Sleeve (MPN 30639N) is a Morse Taper Sleeve that adapts from an MT4 to an MT6 taper, with an overall length of 8 1/2 inches. Manufactured by JACOBS, this sleeve enables the use of MT4-shank tools in MT6-spindle machines.

Frequently Asked Questions

What is the JACOBS Morse Taper Drill Sleeve MT4 to MT6 used for?

The JACOBS Morse Taper Drill Sleeve (MPN 30639N) adapts MT4-shank tools for use in machines with an MT6 spindle. It is commonly used in metalworking, drilling, and machining operations where tool compatibility between different taper sizes is required.

What are the specifications of the JACOBS Morse Taper Drill Sleeve MT4 to MT6?

The JACOBS Morse Taper Drill Sleeve (MPN 30639N) has an MT4 inner taper and an MT6 outer taper, with an overall length of 8 1/2 inches. It is manufactured by JACOBS and is designed for adapting MT4-shank tools to MT6 spindles.

Where to buy the JACOBS Morse Taper Drill Sleeve MT4 to MT6 worldwide?

You can source the JACOBS Morse Taper Drill Sleeve (MPN 30639N) through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide locations, ensuring reliable procurement for your operations.

How to select the correct Morse Taper Drill Sleeve for your machine?

To select the correct Morse Taper Drill Sleeve, match the inner taper (e.g., MT4) to your tool shank and the outer taper (e.g., MT6) to your machine spindle. The JACOBS sleeve (MPN 30639N) provides this MT4-to-MT6 adaptation, ensuring secure tool holding during drilling operations.

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 morse taper sleeves. 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 Morse taper sleeve adapts tools with an MT1 shank for use in machines with an MT4 spindle. It has an inner taper of MT1 and an outer taper of MT4, with an overall length of 4 7/8 inches. Commonly used in metalworking and drilling operations to extend tool compatibility
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This Morse taper sleeve adapts tools with an MT1 shank for use in machines with an MT4 spindle. It has an inner taper of MT1 and an outer taper of MT4, with an overall length of 4 7/8 inches. Commonly used in metalworking and drilling operations to extend tool compatibility
This Morse taper sleeve adapts MT1 tooling to fit MT2 spindles. It has an overall length of 3 9/16 inches. Used in drilling, milling, and turning operations on machine tools, it allows operators to use smaller-shank tools in larger-taper spindles without changing the machine setup
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This Morse taper sleeve adapts MT1 tooling to fit MT2 spindles. It has an overall length of 3 9/16 inches. Used in drilling, milling, and turning operations on machine tools, it allows operators to use smaller-shank tools in larger-taper spindles without changing the machine setup
This Morse Taper Extension adapts an MT2 male taper to an MT3 female taper, extending the reach of tooling in milling machines, drill presses, and lathes. Overall length is 7 5/8 inches. Manufacturer part number 30449DN
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This Morse Taper Extension adapts an MT2 male taper to an MT3 female taper, extending the reach of tooling in milling machines, drill presses, and lathes. Overall length is 7 5/8 inches. Manufacturer part number 30449DN
This Morse taper extension provides an MT3 female socket to MT3 male shank configuration, extending the reach of tooling in drilling and milling operations. With an overall length of 8 7/16 inches, it is suited for deep-hole or hard-to-reach applications in machine shops and industrial manufacturing
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This Morse taper extension provides an MT3 female socket to MT3 male shank configuration, extending the reach of tooling in drilling and milling operations. With an overall length of 8 7/16 inches, it is suited for deep-hole or hard-to-reach applications in machine shops and industrial manufacturing
Morse Taper Extension with MT2 shank and MT2 socket, 6 7/8 in overall length. Extends reach of MT2 tooling in drilling and milling operations, maintaining concentricity and torque transmission for precision machining
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Morse Taper Extension with MT2 shank and MT2 socket, 6 7/8 in overall length. Extends reach of MT2 tooling in drilling and milling operations, maintaining concentricity and torque transmission for precision machining
Morse taper extension with female MT3 socket and male MT4 shank, overall length 9 7/16 in. Adapts MT3-shank tools for use in MT4 spindles or sockets. Used in drilling, reaming, and other machining operations on lathes, milling machines, and drill presses
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Morse taper extension with female MT3 socket and male MT4 shank, overall length 9 7/16 in. Adapts MT3-shank tools for use in MT4 spindles or sockets. Used in drilling, reaming, and other machining operations on lathes, milling machines, and drill presses

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Morse taper sleeve adapts MT4 inner taper to MT5 outer taper, allowing use of MT5 tooling in MT4 spindles. Overall length 6 11/16 inches. Commonly used in metalworking, drilling, and milling operations to accommodate larger-shank drills, reamers, or arbors
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