Manufacturer teaching new employee how to shape wooden bowl on disc sander

manufacturer woodworker teaching learning instructing new employee trainee apprentice shaping wooden disc sander coworker carpentry cabinetmaker joinery wood grinding machine rotating disc tool sander industry sanding sandpaper electric equipment grinder smoothing carpenter electrical grinding wheel sanding machine wood processing material furniture assembling woodwork workshop timber craftsman craft worker man occupation woodworking joiner diy workbench profession handcraft manufacturing handmade handyman craftsmanship hobby creative machinery artisan polishing