Spur gears - video

[Jon]

Spur gears. By Artisan Makes. 12:26 video:

[Toolmaker51]

In this vid, finishes produced by turning are acceptable, and nearly guaranteed with 12L14. Stoning cutting tool edges a proven method to further improvement. However, contrary to what was shown, stoning in two directions is not best practice, such as at 3:06

The abrasive should only draw away from edge(s) getting attention. Pulling it back, unless exactly on same plane as drawn away, is usually detrimental, by losing top rake into a negative or flat.