Ratcheting Mechanism Industry First For T-Handle. This Speeds Up The Application As You Can Keep The Key In The Fastener While Returning Tool To The Starting PositionHeavy Duty Ergonomic Handle More Robust And Lasts Longer In Tough Worksite Conditions.Removable ¼ Drive Key Sizes Fit Into Ratcheting Handle - This Means The User Only Needs One Set.Compact And Sturdy Carrying Case Safe Storage Of The Kit And Less Chance Of Leaving A Key Behind On SiteRemovable Side Bits For Improved TorqueDrive Will Fit All ¼ Sizes (Most Common Drive)Set Includes: Nut Drivers, Socket Adapters, Long And Short Keys (Phillips, Pozi, Torx, Hex Slotted)Pz1; Pz2 X 2; Pz3 35 Mm - Ph1; Ph2; Ph3 35 Mm - Sl 3, 4,5, 6-8 35 Mm - Pz1; Pz2 100 Mm - Pz2; Pz3 150 Mm - 8 Mm 150 Mm - 2,5, 3 Mm 100 Mm - 4, 5, 6 Mm 150 Mm - Sl 4,5, 6-8 150 Mm - T15, T20, T25 150 Mm - T Handle Ratchet - Blow Case