Description

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.