The Bahco 4-in-2 ERGO™ Homeowner's File Set is suitable for both rough and fine filing of a variety of materials. Fitted with a two-component handle for maximum comfort and an excellent grip Developed according to the scientific ERGO™ process. 4 different surfaces in 2 files; 1 x 200mm (8in) File with 2 sides:Rasp bastard cut: Rough filing of wood, plywood, soft plastics, etc.Double second cut: Fine filing of metals, iron and plastics, etc. 1 x 200mm (8in) File with 2 sides:Double bastard cut: Rough sharpening of edges on spades, hoes, mower blades, axes, etc.Single second cut: Fine sharpening of edges on above implements and on knives and scissors Ref: UTTK8567