Security Bit Set, Interchangeable Driving Bits, 31-pc

Master Mechanic 31 Piece, Security Bit Set, Contents: 1 each Of 1" Security Torx #8, Torx #10, Torx #15, Torx #20, Torx #25, Torx #27, Torx #30, Torx #35, Torx #40, Hex 1/16", 5/32", 9/64", 1/8", 7/64", 3/32", 5/64", Hex Metric 2 mm, 2.5 mm, 3 mm, 4 mm, 5 mm, 6 mm, Spanner 4 mm, 6 mm, 8 mm, 10 mm, Tri-Wing #1, #2, #3, #4, 3" Magnetic Bit Holder, Plastic Storage Case.