With the Pferd df 4205 D 126 diamond needle file set, you shape and finish hard materials with total control where conventional files fall short. The universal medium D 126 diamond grit provides balanced stock removal and a clean surface finish on hardened steel over 54 HRC, tungsten carbide, glass, and ceramics. Featuring a 140 mm total length and a 70 mm coating length, this 5-piece set includes flat, three square, square, half-round, and round profiles to tackle flat surfaces, sharp angles, and tight contours. The sturdy plastic case keeps your precision needle files organised and protected in the workshop.