Master Mechanic, 33 piece, security bit set, 1 each of 1″ security star #t8, t10, t15, t20, t25, t27, t30, t35, t40, torque 6mm, 8mm, 10mm, hex 5/32″, 9/64″, 1/8″, 7/64″, 3/32″, 5/64″, hex metric 2mm, 2.5mm, 3mm, 4mm, 5mm, 6mm,spanner 4mm, 6mm, 8mm, 10mm, tri-wing #1, #2, #3, #4, magnetic 3″ bit holder & plastic case.