diff --git a/hw/tool/knife/sharpener/misc.txt b/hw/tool/knife/sharpener/misc.txt
index fc005cd9c..abef43f08 100644
--- a/hw/tool/knife/sharpener/misc.txt
+++ b/hw/tool/knife/sharpener/misc.txt
@@ -13,3 +13,7 @@ https://ozon.by/product/tochilka-dlya-nozhey-gran-komfort-683451214
 super-minimal-hand-driven
 https://ozon.by/product/art-002-tochilka-dlya-nozhey-tochiru-kami-s-reguliruemym-uglom-zatochki-brusok-abrazivnyy-240-800-1133922489/
     ! 105 bin
+
+2021
+MrTopExperimenter - Right Way to Sharpen Knife on Stone 0:00 of 5:13
+    https://www.youtube.com/watch?v=fMtEQAh_1jg