The ER2 is a Cage Construction type Cage Rod from the brand Thorlabs, a renowned name in the optical industry. This rod, specifically designed for cage systems, is 2" long and has an internal bore diameter of 6 mm. Constructed from Stainless Steel, it ensures durability and resistance to wear and tear.
The ER2 is compatible with cage sizes 30 and 60, providing flexibility in its application. It features a post mounting screw of 4-40, which aids in securely attaching it to other components. The total length of the rod is 50.8 mm, and it is available in a step file format for further customization and integration into your optical setup.
For more information, you can visit the product page at https://www.thorlabs.com/thorproduct.cfm?partnumber=ER2. The link is currently valid and indicates that the product is in stock, ensuring quick delivery and minimal downtime in your operations.