Collets are of good quality, had to remove burrs and metal shavings from threads on some of the collets. Really like that they are marked what size they are on the end of the collets for easy identification. Run out is acceptable for my level of hobbyist machining.
These are not a replacement for hardinge collets, but for the money I think these are pretty suitable for a home machinist. There were a few in the set with some flaws but overall the surface finish and threads seem acceptable.