The ER3 is a Cage Construction Cage Rod, part of the extensive catalog of optical elements offered by 3DOptix. This rod, 3 inches long, is manufactured by Thorlabs, a renowned brand known for its quality and precision.
The ER3 is made of Stainless Steel, a material chosen for its durability and resistance to corrosion, making it an ideal choice for various optical applications. It is designed to fit cage systems of two different sizes, specifically 30 and 60, providing flexibility in its usage.
The rod has an internal bore diameter of 6 mm, ensuring a secure fit for the components it will hold. It also features 4-40 post mounting screws, providing a stable and secure mount for your optical elements.
The ER3 is currently in stock and available for immediate use. For more detailed information, you can refer to the step file ER3-Step or visit the product page at https://www.thorlabs.com/thorproduct.cfm?partnumber=ER3.