Product Review

Package include:

ER20 Spring Collet (14pcs,1mm-13mm)
(1mm, 2mm, 3mm, 3.175mm, 4mm, 5mm, 6mm, 7mm,8mm,9mm,10mm,11mm,12mm,13mm)

Product Description
Out dia (D1):11.5mm
Height (H):18mm
Hole dia (D2):1-13mm
Run-out tolerance 0.01mm (0.0006")
First class 1065 carbon steel
Hardened & precision ground