ER MS Nut ER8 ER11 ER16 ER20 ER25 ER32 A M UM Collet Nut CNC Mill Turning Chuck

This ER UM collet nut is designed for secure clamping of ER collets on CNC milling and turning chucks. Made from chromium steel 20CrMnTi, it provides strong durability with a hardness rating of HRC46 to 50. The nut offers reliable performance for precision machining tasks and is suitable for ER collet systems. Available sizes include ER16A fine thread 28x18 M19x1 and ER20A fine thread 34x19 M24x1. The item is new and comes in standard metal color.

Benefits:
Strong chromium steel construction
Heat treated hardness for long service life
Smooth operation for precise clamping
Suitable for CNC milling and turning setups

Package Includes:
ER UM collet nut

Payment

Please ensure the shipping address on your eBay account is accurate before placing your order. If you need to update your shipping address, kindly include the details in the eBay note section during checkout. Orders can be canceled at any time before they are shipped. If your order has already been paid and you wish to modify or cancel it, please contact us within 2 hours of payment. Once the packaging and shipping process begins, cancellations or changes will no longer be possible.


Shipping

Once your payment is received, we will process and dispatch your order within 1-2 business days. Estimated delivery time ranges from 5-20 days, depending on your location. Please note that delays may occasionally occur due to factors beyond our control, such as flight disruptions, holidays, weather conditions, local postal delays, or natural disasters. If your order is delayed or has not arrived within 15 days of payment, please don’t hesitate to contact us. We will promptly track your shipment and provide you with the latest updates.

Return

Your satisfaction is our priority! We offer free 30-day returns for any reason to ensure a smooth, hassle-free experience. If you encounter any issues, please contact us directly before opening a dispute, case, or leaving neutral/negative feedback—we are here to find the best solution for you.

We stand by our products with a 100% money-back guarantee for items that are defective or damaged during shipping. Simply send us pictures of the damaged item, and we will either provide a replacement or issue a full refund—whichever you prefer.

Additionally, we offer a 60-day return guarantee on all items. To initiate a return, please contact us first so we can guide you through the process and make it as easy as possible.