JACOBS Morse Taper Extension Socket: MT4 to MT3
The JACOBS Morse Taper Extension Socket, model 30451DN, is a Morse Taper Extension that adapts from an MT4 female socket to an MT3 male taper. It has an overall length of 9 7/16 inches. This JACOBS-branded extension…
SKU 3G-OTH-307595
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Product Description
The JACOBS Morse Taper Extension Socket, model 30451DN, is a Morse Taper Extension that adapts from an MT4 female socket to an MT3 male taper. It has an overall length of 9 7/16 inches. This JACOBS-branded extension is designed for use in machine tool applications requiring a reduction from MT4 to MT3.
Frequently Asked Questions
What is a JACOBS Morse Taper Extension Socket used for?
A JACOBS Morse Taper Extension Socket adapts an MT4 female socket to an MT3 male taper, enabling machine tools to use tooling with a smaller taper shank. It is commonly applied in drilling, milling, and lathe operations where spindle or socket size reduction is needed.
What are the specifications of the JACOBS 30451DN Morse Taper Extension?
The JACOBS 30451DN Morse Taper Extension has an MT4 female socket and an MT3 male taper, with an overall length of 9 7/16 inches. It is a JACOBS-branded extension designed for machine tool applications requiring a reduction from MT4 to MT3.
Where to buy a JACOBS Morse Taper Extension Socket worldwide?
3G Electric supplies the JACOBS Morse Taper Extension Socket worldwide, handling full logistics and customs clearance. As a global industrial solutions provider, we source and deliver genuine JACOBS parts like the 30451DN to any international destination.
How to select the correct Morse Taper Extension for a machine tool?
To select the correct Morse Taper Extension, match the female socket size to your machine spindle or adapter, and the male taper to your tool shank. For the JACOBS 30451DN, the female is MT4 and the male is MT3. Verify overall length clearance in your machine envelope.
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3G Electric supplies JACOBS morse taper extensions. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.











