General description Highly efficient HSS-R drill bits suitable for drilling applications in various materials including steel, cast-steel (both alloyed and unalloyed up to 900 N/mm tensile strength), grey cast iron, malleable cast iron, die-cast metal, iron sinter, nickel-silver, graphite cast iron, short chipping aluminium alloys, bronze, brass, and hard plastics. Technical specifications Set includes 25 drill bits with sizes: 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, 5mm, 5.5mm, 6mm, 6.5mm, 7mm, 7.5mm, 8mm, 8.5mm, 9mm, 9.5mm, 10mm, 10.5mm, 11mm, 11.5mm, 12mm, 12.5mm, 13mm Right-hand cutting twist drill bit Shank diameter equal to drill bit diameter Compatibility and accessories Includes 17-piece drill and bit set (D-45858) with the following contents: 25mm bits: PH2, PH3 25mm bits: PZ2, PZ3 25mm bits: S0.8, S1.2 25mm bits: T20, T25 Magnetic bit holder Masonry drill bits: 5mm, 5.5mm, 6mm, 7mm Wood/metal drill bits: 4mm, 5mm, 6mm, 8mm Usage Ideal for drilling into steel,