Ingco Triangle Steel File HSTF088, 200mm T12 Steel

Our review

This is a triangular file from Ingco, listed as the HSTF088, with a 200mm length and T12 steel construction. The three-sided profile is the reason to pick it over a flat or half-round file: it reaches into internal corners, square slots and acute angles where a flat face cannot sit. That makes it useful for sharpening saw teeth, deburring drilled holes, dressing small notches and tidying up joints in metalwork or hardwood. Before ordering, think about the cut you need, since files of this shape come in different coarseness grades and the listing does not state one. Also check the handle situation, because a 200mm file is usually sold bare or with a handle, and a bare tang needs one for safe, controlled strokes. Compare against a flat file if your work is mostly straight edges, and against a needle file set if the corners you are cleaning are very small. Available on Sokonia.