This Stanley Expert 39 Piece Bit and Socket Set contains the following: --7 x 1/4in drive sockets: 6, 7, 8, 10, 11, 12 and 13mm. --4 x Slotted 25mm bits: 4, 4.5, 6.5 and 8mm. --4 x Hex 25mm bits: 3, 4, 5 and 6mm. --8 x Torx 25mm bits: TX8, TX10, TX15, TX20, TX27, TX30 and TX40. --7 x Pinned Torx 25mm bits: TX10, TX15, TX20, TX25, TX27, TX30 and TX40. --3 x Phillips 25mm bits: PH1, PH2 and PH3. --3 x Pozi 25mm bits: PZ1, PZ2 and PZ3. --1 x Socket adaptor --1 x Bit adaptor. --1 x 1/4in drive ratchet. Specifications Type: Screwdriver Bit Blade Type: Bits and sockets sets Drive Type: 1/4"" Hex Material: NA Number of Pieces: 39