General description FLITI 13pcs ER11 Collet set includes a variety of spring collets designed for engraving and milling tools. Made from high-quality spring steel, these collets offer excellent elasticity and precision, ensuring a stable and practical performance for various machining applications. Technical specifications Collet sizes: 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, 5.5mm, 6mm, 6.5mm, 7mm Material: High-quality spring steel Installation The collar must be inserted into the collet nut before inserting it into the collet. Usage Suitable for drilling, milling, boring, tapping, engraving, CNC, spindle machines, and other machining tasks. Designed for CNC engraving machines and milling tools, providing powerful hold and parallel clamping. Other information Each collet is packaged in a separate protective container with a label for easy identification.