Excellent finish on the part aside from the threads,
this is what often happens when the threading tool crests when the PD is too small, it creates a sharp edge at the crest of the V, this often leaves a nasty burr, do not do this with a single point threading tool.
A full form insert will reduce this but it is unlikely that many hobbyists will buy or grind a full form tool.
The thread PD on this one is way too small, the following part threads look excellent, almost like I know what I am doing.
this is what often happens when the threading tool crests when the PD is too small, it creates a sharp edge at the crest of the V, this often leaves a nasty burr, do not do this with a single point threading tool.
A full form insert will reduce this but it is unlikely that many hobbyists will buy or grind a full form tool.
The thread PD on this one is way too small, the following part threads look excellent, almost like I know what I am doing.