Changsheng ER Collet Set – ER8, ER11, ER20 Spring Collets For CNC Milling, 1-20mm, Precision 0.005/0.015mm

For the CNC folks—this is a set of precision spring collets from Changsheng.

You're getting ER8, ER11, and ER20 sizes, which together cover a clamping range of about 1mm to 20mm.

The precision is rated at 0.005mm to 0.015mm, so they're accurate for milling work.

Each collet is sold individually, so this package is one piece.

They're made in China, unbranded aside from Changsheng, and ready for your spindle motor.

MPN isn't listed, but the type is clearly ER series.