Our ER M Spanner Collets are precision-engineered components designed for use with CNC milling machines and various tool holding applications. These collets feature a specialized open spanner design that provides secure clamping for cutting tools, tap holders, and MT adapters.

Manufactured from high-quality stainless steel, these collets undergo cryogenic treatment for enhanced durability and performance. The black surface finish not only provides corrosion resistance but also ensures easy identification in industrial settings.

The collets are available in five standard sizes to accommodate various tool diameters: 8mm, 11.5mm, 15mm, 19.5mm, and 25mm. Each size is designed with precise dimensions to ensure optimal grip and concentricity during machining operations.

These spanner collets feature a manual working mode with unfolded design for easy operation. The metallic handle provides excellent grip while maintaining the tool's balance during use. The common size and ordinary feature make them suitable for standard milling applications.

With their metric standard design, these collets are compatible with most international tooling systems. The clamping nut usage ensures secure fastening of cutting tools, reducing vibration and improving machining accuracy.

Came across this collet for my milling needs, and I'm thoroughly impressed. The delivery was incredibly fast, arriving well ahead of schedule, which minimized my downtime. Packaging was secure and professional, ensuring the product arrived in perfect condition without any damage. As for quality, the finish is robust and seems built to last, with no visible defects or inconsistencies. Customer service was responsive and helpful when I had a query, making the whole process smooth. Overall, a reliable purchase that met my expectations in every aspect.
Outstanding experience from start to finish! The delivery was incredibly fast, arriving well ahead of schedule, which was a pleasant surprise. Packaging was secure and professional, ensuring the product reached me in perfect condition. Quality-wise, the collets feel robust and well-manufactured, with a smooth finish that suggests durability. Customer service was responsive and helpful when I had a minor query, making the entire process seamless. Overall, a highly satisfactory purchase that I would recommend to others.
Yielding excellent results from the very start, the shipping was remarkably fast and well-packaged. Vincent Blackwell here, and I must emphasize the outstanding quality of these collets—they feel robust and precisely manufactured. The seller's customer service was responsive and helpful throughout the process. Overall, a top-notch experience that I'd highly recommend to others in the industry.
Prompt delivery and secure packaging ensured the collets arrived in perfect condition. The black finish appears robust and well-applied, suggesting high durability suitable for industrial settings. Customer service was responsive and helpful when I had a query about the shipment. Overall, a very satisfactory purchase experience with no issues to report.