In the video, a man is seen wearing a mask and gloves while sharpening a knife on a grinder. The man is using the grinder to sharpen the knife, and sparks are flying as he does so. The man is focused on his task, and the sparks are bright and visible against the background. The man's movements are steady and controlled as he sharpen the knife. The video is shot in a workshop setting, and the sound of the grinder can be heard in the background. The man's attire and the use of the grinder suggest that he is a professional or experienced in using such tools. The video provides a close-up view of the sharpening process, allowing the viewer to see the details of the knife and the sparks generated by the grinder. Overall, the video is a detailed demonstration of knife sharpening using a grinder.