Bahco Round files are used for filing circular openings or concave surfaces. Tapered towards the point, 4in and 6in files are fully pointed, whilst 8in and longer are semi-pointed. All double cut. Smooth Cut: approx. 62 teeth per 25mm (Fine).Second Cut: approx. 36 teeth per 25mm (Medium).Bastard Cut: approx. 26 teeth per 25mm (Coarse).