Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

JACOBS Drill Chuck Arbor: MT4 to JT3 (MPN 7321N) - Morse-Taper to Jacobs-Taper Arbors
JACOBSMorse-Taper to Jacobs-Taper Arbors

JACOBS Drill Chuck Arbor: MT4 to JT3 (MPN 7321N)

The JACOBS Drill Chuck Arbor (MPN 7321N) is a Morse-Taper to Jacobs-Taper arbor, model MT4 to JT3. This industrial adapter is designed to connect a drill chuck with a Jacobs Taper (JT3) to a machine spindle with a…

SKU 3G-OTH-213147

Also listed as: 7321 N · 7321-N

Brand
JACOBS
Item
Drill Chuck Arbor: MT4 to JT3
Category
Morse-Taper to Jacobs-Taper Arbors
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

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
7321N

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The JACOBS Drill Chuck Arbor (MPN 7321N) is a Morse-Taper to Jacobs-Taper arbor, model MT4 to JT3. This industrial adapter is designed to connect a drill chuck with a Jacobs Taper (JT3) to a machine spindle with a Morse Taper (MT4).

Frequently Asked Questions

What is the JACOBS Drill Chuck Arbor 7321N used for?

The JACOBS Drill Chuck Arbor 7321N is used to connect a drill chuck with a Jacobs Taper (JT3) to a machine spindle with a Morse Taper (MT4). It is commonly employed in industrial drilling applications on lathes, milling machines, and drill presses to ensure secure chuck mounting.

What are the specifications of the JACOBS Drill Chuck Arbor 7321N?

The JACOBS Drill Chuck Arbor 7321N is a Morse-Taper to Jacobs-Taper arbor, model MT4 to JT3. The manufacturer part number is 7321N, and it is made by JACOBS. This industrial adapter enables precise chuck attachment for drilling operations.

Where to buy the JACOBS Drill Chuck Arbor 7321N worldwide?

You can source the JACOBS Drill Chuck Arbor 7321N 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 select the correct JACOBS Drill Chuck Arbor for your machine?

To select the correct JACOBS Drill Chuck Arbor, match the Morse Taper size (e.g., MT4) to your machine spindle and the Jacobs Taper size (e.g., JT3) to your drill chuck. Verify both taper dimensions before ordering. 3G Electric can assist with selection 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 morse-taper to jacobs-taper arbors. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
JACOBS Drill Chuck Arbor: MT4 to JT4 (MPN 7322DN)
JACOBS
JACOBS Drill Chuck Arbor: MT4 to JT4 (MPN 7322DN)
JACOBS Drill Chuck Arbor: MT3 to JT2 (MPN 7314N)
JACOBS
JACOBS Drill Chuck Arbor: MT3 to JT2 (MPN 7314N)
JACOBS Drill Chuck Arbor: MT3 to JT3 (MPN 7315N)
JACOBS
JACOBS Drill Chuck Arbor: MT3 to JT3 (MPN 7315N)
JACOBS Drill Chuck Arbor: MT3 to JT6 (MPN 7318N)
JACOBS
JACOBS Drill Chuck Arbor: MT3 to JT6 (MPN 7318N)
JACOBS Drill Chuck Arbor: MT2 to JT33 (MPN 7312N)
JACOBS
JACOBS Drill Chuck Arbor: MT2 to JT33 (MPN 7312N)
JACOBS Drill Chuck Arbor: MT3 to JT33 (MPN 7319DN)
JACOBS
JACOBS Drill Chuck Arbor: MT3 to JT33 (MPN 7319DN)

More from JACOBS

View all JACOBS parts
JACOBS Drill Chuck Arbor: MT3 to JT4 (MPN 7316DN)
JACOBS
JACOBS Drill Chuck Arbor: MT3 to JT4 (MPN 7316DN)
JACOBS
JACOBS
JACOBS Drill Chuck Arbor: MT5 to JT4 (MPN 7328DN)
JACOBS Drill Chuck Arbor: MT3 to JT5 (MPN 7317N)
JACOBS
JACOBS Drill Chuck Arbor: MT3 to JT5 (MPN 7317N)
JACOBS Drill Chuck Arbor: MT2 to JT4 (MPN 7309N)
JACOBS
JACOBS Drill Chuck Arbor: MT2 to JT4 (MPN 7309N)
JACOBS Drill Chuck Arbor: MT2 to JT2 (MPN 7307N)
JACOBS
JACOBS Drill Chuck Arbor: MT2 to JT2 (MPN 7307N)
JACOBS
JACOBS
JACOBS Drill Chuck Arbor: MT4 to JT2 (MPN 7320N)
JACOBS Drill Chuck Arbor: MT2 to JT3 (MPN 7308DN)
JACOBS
JACOBS Drill Chuck Arbor: MT2 to JT3 (MPN 7308DN)
JACOBS
JACOBS
JACOBS Drill Chuck Arbor: MT5 to JT3 (MPN 7327N)