I'm really impressed with the skill of this young woman, Lin Guoer, who graduated from Kunming University, majoring in Water Conservancy and Hydroelectric Engineering She lives in Wumeng Mountain in China, she for the most part is only using basic tools. Her bench is part of an old door. She can manage, electrical and mechanical engineering, sandblasting and welding. She mostly repairs stuff for locals. Here she was given an old electric bike, which she repaired and uses. Here she renovated her grandpa's room. Lots of other videos of her skills. Check out her hands, they aren't "builder's hands," despite the rough work she does. Dunno what sort of hand cream she uses, but it certainly works.