Mr.Wizard

This one looks right.  Some people grind the bolster off with a spindle sander, like a big choil, which is fine if you like bolsterless knives.  However it changes the feel substantially and those not accustomed to bolsterless knives may cut themselves.

Perhaps these are included angles of a secondary bevel upon which a small or micro apex bevel is formed?  That would make sense for machine sharpened knives I think, as in videos I’ve seen there is usually a edge grinding operation, then final sharpening is done separately.

By edge grinding I mean things like this.

The chart has been updated to revision 9.  This is a particularly large revision and I welcome comments.  Significantly I identified and corrected the error of listing “CAMI” and “ANSI” separately.  As always please see README.txt for details.  (You may need to to a hard refresh, Shift+F5, to see the change.)

A lot of reviews on Amazon are totally fake, unfortunately.  You can try to filter out some of these using Fakespot.com but I don’t trust that entirely either.

This is incorrect.  I refer you to the work of Todd Simpson at https://scienceofsharp.com/2018/08/22/what-does-steeling-do-part-1/

“The blade was then steeled in the traditional fashion, edge leading at an angle of approximately 30 degrees.  The blade was imaged, confirming that keenness had been restored to the apex and revealing that this w…[Read more]

This is bad technique.  You should not be making a bow like that as you sharpen.  Likely your 1998 set could be restored to working order with a little work. You can reduce the bolster as needed to preserve the profile of the knife.  When the behind-the-edge thickness is too large you can thin the knife.  After repeated thinning and tip rep…[Read more]

Are you planning a similar analysis for the 80 through 600 grit stones?  If not I humbly request it.

Also is there a time frame for the LANL results?

This is going to be difficult to handle in the next revision of my grit chart.

Clay, what do you think of the wavy stone approach I proposed?

Why?

That looks like Paperstone to me.

What is under the paper plate?

Paperstone is just a paper-resin composite, and should machine like Micarta.  From https://paperstoneproducts.net/wordpress/installing/

Perhaps you have the Paperstone base?  https://www.gpknives.com/wicked-edge-paperstone-base-we022.html

If so I believe you are in luck as carbide bits should work.

The chart has been updated to revision 8.  Please see README.txt for an extensive list of changes.

Indeed it is quite complicated, which is why I have spent a great deal of time creating the GLGC in an effort to demystify these things.

I think it unwise to conflate grit and mesh, since there are many different definitions for both grit and mesh, none of which are equivalent IIRC.

Your image matches 3M aluminum oxide lapping films, not…[Read more]

I found the answer: 5 micron.  It is listed in the Knowledge Base Grit Comparison Table.