12 piece Screwdriver Set for Slotted, Phillips and Pozi drive headsFlat: 2.5x75mm, 3.5x100mm, 4x150mm, 5.5x150mm, 6.5x150mm, 10x200mmPhillips: PH0x75mm, PH1x75mm, PH2x100mm, PH2x200mmPozi: PZ1x75mm, PZ2x100mmScrewdrivers in the Teng Tools Range have steel alloy TT-MV plus blades which gives 20% greater capacity than standard screwdriversThis makes the shaft harder yet more flexibleThe bi-material handle is designed to suit either your need for power transfer or speedThe handle is molded around the blade, this ensures that all screwdrivers are completely straight and permits much larger wings on the bladeLarger wings in turn create more torqueThe hole in the handle is for tool securing when working at height, for hanging or for use with a T Handle for extra torque.Supplied in a handy storage case