XLSelector 1/4" Insert Bit Set, 31 Piece. Includes: Slotted 4.5, 5.5, 6.0mm, Phillips #1, #2, #3, Torx® T7, T8, T9, T10, T15, T20, T25, Square #1, #2, Hex Metric: 2.0, 2.5, 3.0, 4.0, 5.0, 6.0mm, Hex Inch 5/64, 3/32, 7/64, 1/8, 9/64, 5/32, 3/16, 7/32, 1/4", 1/4" x 59mm Magnetic Bit Holder. Bits made of chrome-vanadium-molybdenum steel, hardened. XLSelector has easy bit access with hinged cover.