Helps you to do fine sanding jobs like wood-working, furnitrue-polishing,plastic, aluminum & metal-polishing ... narrow spaces and recessed corners. Helps you to do fine sanding jobs like wood-working, furniture-polishing, plastic. Aluminum & metal-polishing ... , curves and other different to-reach spots for common sanding machines. 3 different grit sanding belts (60, 80, 120 grit) included for different ...