0:06
Sharpening two blades together many times.
0:03
Sharpening two blades together with grit 02.
0:02
Sharpening two blades together with grit 01.
0:02
Sharpening two blades together 02.
0:01
Sharpening two blades together 01.
0:02
Scratching a knife on a jagged metal surface.
0:01
Scratching a knife back and forth on a metal guitar string 08.
0:01
Scratching a knife back and forth on a metal guitar string 07.
0:02
Scratching a knife back and forth on a metal guitar string 06.
0:05
Scratching a knife back and forth on a metal guitar string 05.
0:07
Scratching a knife back and forth on a metal guitar string 04.
0:07
Scratching a knife back and forth on a metal guitar string 03.
0:15
Scratching a knife back and forth on a metal guitar string 02.
0:07
Scratching a knife back and forth on a metal guitar string 01.
0:06
Scratching a knife on a metal guitar string 05.
0:02
Scratching a knife on a metal guitar string 04.
0:01
Scratching a knife on a metal guitar string 03.
0:02
Scratching a knife on a metal guitar string 02.
0:05
Scratching a knife on a metal guitar string 01.
0:04
Scratching a knife on a hard wooden surface many times back and forth.