Hand Cut File for filing flat surfaces, sharp corners and shoulders as well as for deburring. A double cut file should be used for work on high-alloy tool steels. Also useful for the sharpening of heavy implements. High removal rate. Double cut on both sides - with one safe edge (a safe edge permits work in corners). Parallel sides but slightly tapered in thickness. Smooth Cut: approx. 62 teeth per 25mm (Fine).Second Cut: approx. 36 teeth per 25mm (Medium).Bastard Cut: approx. 26 teeth per 25mm (Coarse).