Gouges are forged in various sweeps to remove greater or lesser amounts of wood. For example, roughing out the background for a large relief panel would require a tool such as a 9 sweep. The ridges and hollows formed by this tool would then be levelled with a 2 or 3 sweep gouge. Pfeil carving tools and sets are Swiss made. Swiss made implies reliability and precision. Pfeil is undoubtedly the finest carving tool on the market, second-to-none in terms of manufacturing quality and durability.