5mm Increments ER8 (RD8) Collets Collapse Approximately. The item "ER8 9pcs Metric Size Collet Set 1.0mm 5.0mm by YG1, High Quality" is in sale since Tuesday, April 7, 2020. This item is in the category "Business & Industrial\CNC, Metalworking & Manufacturing\Workholding & Toolholding\Workholding\Collets\Spring Collets". The seller is "suncoastprecisiontoolsoutlet" and is located in Vernon Hills, Illinois. This item can be shipped to United States.