Swift TechnoFil Sash paint brush for detail painting. Technofil synthetic filaments are for high paint and varnish pick up and excellent spreading rates. Pointed round tip for detail painting such as, window trims, sills and frames and sashes, coving cutting in. For use with both solvent and water based paints and constructed with a long lasting polished beech wooden handle, rust resistant stainless steel ferrule, these brushes are robustly constructed for professional use. Vapour box compatible. Size; No.0 - 18mm diameter.