1/2 R8 Collet Set Of 6

Description

1/2" Opening Size R8 Collet Hardened & Ground, set of 6 total. Sold together.
Information and stock pictures are from Toolots website, not sure this is the specific purchasing company or brand, but the pictures are identical and the information should be a fairly accurate description.
I don’t have any knowledge on these so please free to do your research and let me know if you any helpful feedback or would like any additional information to verify.
1. Good elasticity, high precision, run-out tolerance 0.0012"
2. Designed for use with cylindrical shank tools, not flats
3. Back bearing diameter of 61/64" (24.12mm) and overall length of 4" (101.6mm)
4. Using high quality spring steel
5. Used for holding workpieces in a lathe or other machine tool
6. Premium hardened & all ground body for extended tool life