SCREW SLOT FILES by FRIEDR. DICK GMBH are designed for precision in making screw slots, with six sizes and two styles to accommodate various slotting needs.
The product includes a matched pair of files, one Joint File for edge cutting without widening the slot, and one Equalling File for cleaning and squaring the slot sides.
Files are delicate, very thin, and can be easily bent or broken; therefore, they come without a guarantee.