Bosch Driver Bit Set (43 pieces, 6.35mm Hex Shank, 9mm Groove Shank, 25mm, with Case) 2607017164 Set Contents-1: 25mm Driver Bits PH1/2/2/3, PZ1/2/2/3, Slotted S3/4/5/6 Set Contents-2: 25mm Driver Bits HEX3/4/5/6, T10/15/20/20/25/27/30/40, Th10/15/20/20/25/27/30/40 Set Contents-3: 75mm Driver Bits PH2, PZ2, S5, T15/20/25, Hex Sockets 6/8/10, 9mm Groove Adapter, Storage Case Hex Shank: 6.35mm Shank Type: 9mm Groove Shank Thank you for viewing.