Para 3 strange vertical streaks in blade

[ronT2]

Those lines look like die/tooling lines from processing powdered metal. I've never seen a grinding belt or bonded wheel leave dead straight lines like that in the finish. Interesting.

[The Mastiff]

Really excellent photography Spoonrobot!

It's just grind lines. No defects, no carbide tearout or anything to worry about. Use it often and enjoy a knife meant to perform and not just look pretty.

Joe

[The Meat man]

Similar on my Maxamet PM2. I was wondering if it was some sort of carbide tearout from the finishing belts but ended up going out of town for a bit and forgetting about it until now.
[img]https://drandalls.files.wordpress.com/2 ... g_1887.jpg[/img

They have depth, but not something I could measure. Microscopic.
[img]https://drandalls.files.wordpress.com/2 ... g_1909.jpg[/img

[img]https://drandalls.files.wordpress.com/2 ... g_1911.jpg[/img

Those are some really cool photos, btw! You use a microscope?

[spoonrobot]

Similar on my Maxamet PM2. I was wondering if it was some sort of carbide tearout from the finishing belts but ended up going out of town for a bit and forgetting about it until now.
[img]https://drandalls.files.wordpress.com/2 ... g_1887.jpg[/img

They have depth, but not something I could measure. Microscopic.
[img]https://drandalls.files.wordpress.com/2 ... g_1909.jpg[/img

[img]https://drandalls.files.wordpress.com/2 ... g_1911.jpg[/img

Those are some really cool photos, btw! You use a microscope?

Thanks, I use a cheap pocket microscope that has a clip on attachment for smartphones. Makes taking photos easy and works even better looking through it with your eyes to check edges and stuff.