Makita D-54075 13 Piece Drill Bit HSS-R Metal Drill Bit Set in Storage Tin 6.5 Highly efficient HSS-R drill bits suitable for drilling applications in steel and cast-steel alloyed and unalloyed up to 900N/mm tensile strength, grey cast,malleable cast iron, die-cast metal, iron sinter, nickel-silver, graphite cast iron, short chipping aluminium alloys, bronze, brass and hard plastics. Includes sizes1.5, 2, 2.5, 3, 3.2, 3.5, 4, 4.5, 4.8, 5, 5.5, 6, 6.5mm. Features and Benefits: Suitable for drilling steel up to a tensile strength of 900 N/mm , non-ferrous metals, cast iron, hard plastics etc. High rotational precision. Right-hand cutting twist drill bit. Shank equal to drill bit diameter. Makita D-45858 17 Piece Drill and Screwdriver Bit Set Masonry Wood Metal Drills Set 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 - 5, 5.5, 6, 7mm Wood/Metal Drill Bits - 4, 5, 6, 8mm