Features 【Accuracy Engineering】The chuck lathe collet has an outer diameter of 100mm, accurate locating diameter of 72mm, and exceptional concentricity of 0.0016 for accurate and stable performance. 【Carbon Steel Material】Crafted from carbon steel, this 100mm CNC chuck lathe collet exhibits strong oxidation resistant and high hardness for long lasting durability and dependable performance. 【Versatile Compatibility】Designed for use with CNC milling machines and compatible with ER32 wrench, this CNC lathe ER32 collet is suitable for a wide range of machining applications. 【Robust Construction】The spring lathe collet chuck features a height of 42mm, providing stability and strength for secure tool clamping and efficient machining performance. 【Professional Accuracy】This collet chuck lathe accessories ensures consistent and accurate tool holding, suitable for achieving high accuracy results in CNC machining tasks. 1. Accuracy Engineering: The collet chuck has an outer diameter of 100mm, accurate locating diameter of 72mm, and exceptional concentricity of 0.0016 for accurate and stable performance. 2. Carbon Steel Material: Crafted from carbon steel, this collet chuck exhibits strong oxidation resistant and high hardness for long lasting durability and dependable performance. 3. Versatile Compatibility: Designed for use with CNC milling machines and compatible with ER32 wrench, this collet chuck is suitable for a wide range of machining applications. 4. Robust Construction: The spring collet chuck features a height of 42mm, providing stability and strength for secure tool clamping and efficient machining performance. 5. Professional Accuracy: This collet chuck ensures consistent and accurate tool holding, suitable for achieving high accuracy results in CNC machining tasks. Spec: Item Type: CNC Collet Chuck Material: Carbon Steel Diameter: Approx. 100mm / 3.94in Positioning Diameter: Approx. 72mm / 2.83in Height: Approx. 42mm / 1.65in Concentricity: 0.0016 packing list: 1 x Collet Chuck 1 x ER32 Wrench Note: Please allow 1 to 2in error due to manual measurement. Thanks for your understanding. Package List 1 x Collet Chuck 1 x ER32 Wrench