ER25 Collet Set - 9 Pieces Sizes - 3, 4, 5, 6, 8, 10, 12, 14, 16 mm openings Function and applications - Suitable for drilling, milling, threading, engraving, CNC operations, spindle machines, and other machining tasks - Designed for use with ER25 collet chucks and compatible spindle systems Material and quality - Made from high quality spring steel for durability - Stable and practical performance with tight tolerances for secure grip Why you need it - Provides a versatile range of collet sizes in one set for quick tool changes - Improves holding stability and repeatability across multiple tools and operations Use scenarios - CNC milling and drilling of aluminum or steel parts with varying tool shanks - Engraving and precision threading on metal or plastic components - General workshop tasks requiring multiple collet sizes in hobbyist or professional settings