20mm Travel, Adjustable Length Tube - 85-513

The 85-513, also known as the 20mm Travel, Adjustable Length Tube, is a high-quality optical component from Edmund Optics, a leading brand in the field of optical hardware. This tube is designed for Cage Construction, specifically for Cage System Mounting, making it an ideal choice for various optical applications.

The tube is made of durable aluminum and features a black anodized finish, providing both strength and a sleek aesthetic. It has a circular optical shape with a clear aperture of 18mm, allowing for a wide range of optical elements to be mounted.

The standout feature of this tube is its adjustable length, which provides a travel range of 20mm. The extension length can be adjusted from a minimum of 30mm to a maximum of 30mm, offering great flexibility in optical system design. The total length of the tube is 36.5mm, and it features M23.2x0.75 (Double Male) thread type for secure mounting.

This tube is currently in stock and available for immediate use. For more detailed information, including a step file and web link, users can refer to the item data provided.