A man sharpens a knife by dragging it across two different areas of an electric sharpener.
A man is sharpening an electric knife on a device designed to do so.
A person uses a sharpening tool to sharpen a knife.
A man is cutting a plastic tool with a knife.
A man runs a knife through a tool multiple times
looks like a man is sharpening a long knife on a strange looking device.
A person using an electric knife sharpener to sharpen a knife.
A person is sitting at a table  sharpening a knife with two knife sharpeners
Man sharpening a knife using a black tool sitting on top of a wooden table.
A man is sharpening a knife with a hand held shapener.