Sharpness Chart

Sharpness Chart

Edge apex thickness in conventional sharpness tests.

Instructional Videos

Our YouTube

Deburring

Knife Deburring book
Science behind the lasting razor edge

The latest edition of the book is available on Amazon (paperback and kindle), Google Books and our online shop (downloadable PDF).
Translated to German and Russian. Read in 64 countries.

SEM Images

Scanning Electron Microscope images for our sharpening protocols

Rockwell Hardness Difference Comparator

Rockwell Hardness Difference Comparator

A web applet that calculates on non-linear HRC scale and compares hardness in %

Forum

Knife Grinders forum at the Australian Blade Forums >>

Hall of Glory - Insane sharp by our followers >>

Manuals

Software for Tormek

Software for Tormek in German

Software for Tormek in Russian

Tormek SuperGrind 4000 Angle Setter applet manual

Tormek SG1200 Angle Setter applet manual

Stands for controlled-angle sharpening on grinder - Mounting and Usage Manual

Scheppach Tiger Grinding Angle Setter applet manual

Record Grinding Angle Setter applet manual

WEN BG4270 Grinding and Honing Angle Setter applet manual

Triton TWSS10 Grinding Angle Setter applet manual

Jet JSSG-10 Grinding Angle Setter applet manual

Holzmann NTS250PRO Grinding Angle Setter applet manual

Elmos BG-200 Grinding Angle Setter applet manual

Ton Nillesen trigonometry

Ton Nillesen trigonometry for Tormek grinder

Edge Stability researches

Edge Stability researches done by us

Sharpening Procedures

Sharpening Handbook - a complete reference on sharpening by Rich Colvin

Our knife sharpening procedures

Websites of interest

Knife Steel Composition Database

australianbladeforums.info

bessex.com

bladeforums.com

edgeonup.com

knifesteelnerds.com

scienceofsharp.com

sharpeners-report.com

sharpeninghandbook.info

sharpeningmadeeasy.com

tormek.com/forum

And of course The Knife Game Song by Rusty Cage