Available as three different sets to suit your needs, the rotary masonry drill sets come with various attachments. The 7 Piece Standard Length kit includes: Standard Length: No.6 x 75, No.8 x 85, No.10 x 85, No.10A x 100, No.12 x 100, No.16 x 120, No.20 x 120mm. The 7 Piece Standard &Medium Length kit includes: Standard Length Pieces: No.10 x 85, No.12 x 100, No.14 x 100, No.16 x 120, No.20 x 120. Medium Length Pieces: No.24 x 150, No.26 x 150mm. The 16 Piece Standard &Medium Length kit includes: Standard Length: No.6 x 75, No.8 x 85, No.10 x 85, No.10A x 100, No.14 x 100, No.16 x 120, No.18 x 120, No.20 x 120. Medium Length: No.8 x 150, No.10 x 150, No.10A x 150, No.14 x 150, No.16 x 150, No.18 x 150, No.20 x 150, No.24 x 150mm.