A man is demonstrating on how to sharpen a knife using a sharpening tool and also a machine.
A man sharpens a knife on a sharpening stone, and also uses a power tool on it.
A man is sharpening a knife with two different blades
A man is showing how to sharpen a knife using a spinning machine.
In a workshop, a man shows two different ways to sharpen a knife.
A man is standing in his workshop and sharpening a knife blade.
in a workshop a man is showing some specific tools that he uses to sharpen the knives really well
Someone uses a knife sharpening block to sharpen a knife, then uses a machine to sharpen the knife block.
A man is sharpening a knife on a solid block, and then standing in front of a rotating tool with sparks flying out of it.
A man is sharpening knives while placing the edge of the knife on the shapening metal object.