Enhance the performance and reliability of your CNC milling setup with this high-quality Collet Nut, designed as a perfect replacement for broken or worn parts. Crafted from premium 42CrMo steel, this collet nut offers exceptional hardness and durability, ensuring long-lasting use under demanding machining conditions. Engineered to provide strong clamping force, it securely holds your tools without deformation, maintaining precision and stability during operation. Key Features: · Premium 42CrMo Steel Construction: Guarantees high hardness and durability for extended service life and reliable performance. · Strong Clamping Force: Ensures firm and stable tool holding, minimizing slippage and improving machining accuracy. · Compatible Design: A/M type nut specifically designed for ER collet milling CNC chuck holders, fitting most ER type tool handles, tool shanks, extension bars, drill bits, boring cutters, and other tooling accessories. · Multiple Size Options: Available in various specifications including ER16-A M22*1.5 (Black and Silver), ER16-A&M M19*1.0 Black, and ER16-M M19*1.0 Black to meet diverse machining requirements. · Lightweight and Easy to Install: Weighing approximately 21g to 37g (0.7oz to 1.3oz), this collet nut is easy to handle and install, making tool maintenance quick and efficient. Specifications: · Material: 42CrMo Steel · Weight: Approx. 21g–37g (0.7oz–1.3oz) · Type Options: ER16-A M22*1.5 Black, ER16-A M22*1.5 Silver, ER16-A&M M19*1.0 Black, ER16-M M19*1.0 Black Package Includes: · 1 x Clamping Nut This durable and precision-engineered collet nut is an essential accessory for maintaining the performance of your ER collet milling CNC chuck holder. Its robust construction and strong clamping capability ensure reliable tool retention, making it ideal for professional machinists and hobbyists seeking to optimize their tool holding system.