The Micro-Tec MT3–MT4 Extension Bushing is a precision-engineered adaptor designed to extend compatibility between MT3 and MT4 tapered tooling. Ideal for lathes, milling machines, and drill presses, this extension bush allows operators to use MT3 tooling in MT4 spindles without compromising accuracy or rigidity. Manufactured to high machining standards, it provides a secure fit, smooth operation, and dependable alignment for professional workshop and engineering environments.

• Precision extension bushing for MT3 to MT4 compatibility
• Allows MT3 tooling to be used in MT4 machine spindles
• Ideal for lathes, milling machines, and drill presses
• Ensures accurate alignment and secure tool holding
• Manufactured from high-quality, hardened material for long service life
• Reduces the need for multiple toolholders or spindle adaptors
• Suitable for professional machining, engineering, and workshop use