Description
Expand the versatility of your machinery with the Magnum ASMT43. This machined steel MT4 to MT3 adapter sleeve allows you to utilize smaller Morse Taper 3 tooling in a larger Morse Taper 4 spindle or tailstock, maximizing the utility of your existing tooling inventory.
Features
- Machined steel construction – Ensures accurate concentricity and rigid holding power.
- Taper reduction – Adapts Morse Taper 4 equipment to securely accept Morse Taper 3 shanks.
Specifications
- Outside Taper: MT4
- Inside Taper: MT3
- Material: Machined Steel
- Supplier Part Number: Not Specified
- KMS Product Code: MAG-ASMT43
Compatibility
Fits securely into any MT4 socket (lathe tailstock, mill spindle) and accepts standard MT3 arbors, drill chucks, or live centers.
Common Shop Applications
- Mounting an MT3 drill chuck arbor into a larger MT4 lathe tailstock.
- Using MT3 taper-shank drill bits in an MT4 geared-head drill press.
Recommended Shop Add-Ons
- Magnum Drift Key
- Magnum Live Center
Frequently Asked Questions
Q: Will this allow me to use MT2 tooling? A: No, this specific adapter sleeve only reduces from MT4 down to MT3.
Q: How do I remove the tooling from the sleeve? A: You will need to use a standard drift key inserted into the slot to wedge the MT3 tool out.









