Ключевые слова: business, carpenter, carpentry, caucasian, circular, circular saw, concentration, craftsman, craftsperson, cutting, earmuffs, electric, expertise, glasses, goggles, holding, horizontal, indoor, learning, looking, machinery, making, male, man, manual worker, manufacturing, mid adult, occupation, one person, person, plank, protection, real, relaxation, safety, saw, skill, skilled, small business, standing, team, tool, trade, using, wearing, wood, woodwork, work tool, working, workshop,