Manual knurling - GIF

[ToolTalkBot]

Manual knurling.




Previously:

CNC knurling stainless steel - GIF
Knurling a shaft - GIF
Knurling from two sides - GIF
Knurling with a threading tool - video
Universal cut knurling tool - video

[metric_taper]

That looks like the makings of a wood rasp. Next process is heat treat. And these are just random enough to cut different plow locations when fast removal of wood is the use.

[bruce.desertrat]

That looks like the makings of a wood rasp. Next process is heat treat. And these are just random enough to cut different plow locations when fast removal of wood is the use.

I'm pretty sure metric_taper is correct. Here is some more footage of how these are made by hand in a factory in France.

As can be expected, these are pretty pricey tools