PRODUCT SUMMARY
The Jimy Tools Drill Reduction Sleeve MT4 x MT3 is a precision ground Morse taper adaptor designed to allow MT3 tooling to be accurately used in MT4 spindle machines. Manufactured from hardened steel and precision ground internally and externally, it delivers excellent concentric accuracy and reliable performance for drilling, milling and general machining applications.
Key Features
- Allows MT3 tooling to be used in MT4 machine spindles
- Hardened and precision ground construction
- Hardness rated to 52–55 HRC
- Precision ground internally and externally for high concentric accuracy
- Concentricity tolerance to 0.010 mm
- Manufactured in accordance with DIN 2185
- Suitable for drilling, milling and general machine shop use
Usage:
Ideal for adapting MT3 shank drills and tools for use in MT4 spindle machines while maintaining accurate alignment and run-out control.






























