- **CNC Spanner Wrench**: Crafted from high-quality steel, this CNC spanner wrench is designed for durability and long-lasting performance in various machine tool applications. - **Wide Compatibility**: The ER-O spanner wrench works seamlessly with ER16, ER20, ER25, ER32, and ER40 collet chucks, making it ideal for removing nut locks on tool holder end mills and extension bars of these sizes. - **High Strength and Hardness**: With exceptional strength and hardness, this wrench ensures a secure grip on collet nuts, simplifying the process of tightening or loosening during tool changes. It also offers excellent wear resistance. - **Robust Construction**: Built to withstand heavy-duty use, the CNC spanner wrench is engineered to endure the rigors of industrial environments without compromising performance. **Use Scenarios**: - Perfect for machinists who require reliable tools for routine maintenance and tool changes in CNC machining centers. - Ideal for workshops that frequently switch between different tool holders and need a dependable wrench for quick adjustments. - Suitable for production facilities where precision and efficiency are essential for maximizing output. This spanner wrench delivers the performance and reliability you need for all your machining tasks.