General description The MT3 ER25 M12 Collet Chuck Holder is designed for CNC milling and turning applications. It features a straight-type handle body suitable for holding small drilling and milling tools. This tool allows for the use of shorter tools, reducing costs and improving efficiency. The precision-ground stability diameter and other components eliminate unbalance, ensuring high precision and strong clamping. Technical specifications Collet specifications: ER25 Clamping diameter range: 3-20mm Locking nut specifications: ER25 Extension pole included Measurement allowed error: +/- 1-3cm Compatibility and accessories Compatible with ER25 collets Includes 1 x Extension Pole Includes 1 x Spanner