ER8 precision collet made of high grade tool steel. Please select option list for sizes available. 

General dimensions for ER-8 collets:D (Outside Diameter): 8.5 mm, L (Overall Length): 13.5 mm)

Just go to the size window above to select the size you need from the drop down menu.

Hardened and precision ground. Class AA accuracy: ≤0.008mm

Please note that the product picture is for reference purposes only and may not depict the exact item and size you are purchasing.

If you have any questions, please do not hesitate to contact us at anytime.