Carpenter changing cut off discs on power tool used to smooth surfaces

carpenter power tool smoothing surfaces abrasion sandpaper changing cut off discs man preparing equipment furniture assembling job studio woodwork wood work workshop carpentry timber craftsman industry tool wooden craft worker occupation lumber woodworking joiner diy machine workbench profession handcraft safety manufacturing woodworker handmade handyman hobby creative material machinery sander sanding artisan workplace polishing joinery hammer production assemble handwork apprentice grinder grinding orbital sander sawdust