MT4 (Morse Taper 4) to JT3 (Jacobs Taper 3) Drill Chuck Arbor (MPN: 3700-0160)
This listing is for a high-quality, precision-ground MT4 to JT3 drill chuck arbor. This is the essential adapter required to mount a drill chuck with a female JT3 taper onto a machine spindle that accepts a male MT4 taper.
This is a common setup for heavy-duty drill presses, larger lathe tailstocks (e.g., 13″+ swing), and milling machines.
Technical Specifications & Improvements
MPN: 3700-0160
Machine Side (Male): MT4 (Morse Taper #4)
Chuck Side (Male): JT3 (Jacobs Taper #3)
Quality Enhancement: Hardened & Precision Ground This arbor is made from high-grade steel which is both hardened and precision ground.
Hardened: Resists wear, nicks, and damage, ensuring a long service life.
Precision Ground: Guarantees a perfect, secure fit on both tapers. This is critical for minimizing runout (T.I.R.), ensuring your drill bits spin true and accurately. Do not settle for non-ground arbors which can introduce significant wobble.
Compatibility
This is the correct arbor to pair with drill chucks that have a JT3 mount, such as the popular Vertex Pro-Series 1/32″ – 5/8″ chuck.
Note: You are purchasing the arbor only. The drill chuck shown in photos is for illustration purposes only and is not included.
