Parlec
Parlec C40F-20ERF400 C40F20ERF400 Cat40 ER20 Collet Chuck NEW IN TUBE
What makes this durable is the zinc coated layer that bonds tightly to the underlying material.
Parlec ERS32-0393 ER: ER32, 10 mm 1.574" OAL, 1.3" Overall Diam
I like how Thermal Transfer Products LTD labels each part with clear specifications.