The milwaukee sds plus drill bits have dynamic chisel shaped drill heads to ensure swift penetration and optimal material removal they have a tough carbide tip with an optimised design held by high strength brazing to offer excellent durability even in steel reinforced concrete the unique 2 flute design reduces vibrations and transfers the energy directly to the bit tip each 7 piece set comprises one of each of the following sizes 5 x 110mm 6 x 110mm 8 x 110mm 6 x 160mm 8 x 160mm 10 x 160mm 12 x