These Faithfull Engineer's Hand files fitted with a comfortable handle, for professional and frequent DIY use. They are parallel in width, slightly tapered in thickness and have a double cut with safe edge. Second Cut: Approx 36 teeth per 25mm (Medium). Bastard Cut: Approx 26 teeth per 25mm (Coarse). The FAIFIHB12 hand file has the following specifications: Cut: Bastard. Blade Length: 300mm (12in). Blade Width: 27mm (1.1/16in). FAIFIHB12