One for almost everything, 34 pieces. The multi-profile fits the five most common screw head drives (hexagonal metric, square metric, 12-point metric, hexagonal inches (inches), external TX). Contents: 34 pieces, 1 lever reversible ratchet, 1 angle extension 25 mm, 1 extension 150 mm, 1 flexible extension 150 mm, 1 universal joint, 1 screwdriver socket handle 1/4 inch, 1 adapter with quick-change chuck, 12 socket wrench inserts SW: 4; 5; 5.5; 6; 7; 8; 9; 10; 111; 11; ; 13; 14; 13 bit PH: PH 1, PH 2, PH 3; 4 bits for hexagon socket: 3, 4, 5, 6 mm 7 bits TX: TX 10, 15, 20, 25, 27, 30, 40; 1 bit slot: 0.8 x 5.5