This Professional 42 Piece Torsion Bit Set from Gedore is designed and engineered for durability and reliability. The bits feature a Torsion zone to protect them under load, cushioning peak torques and increasing lifetime. It includes an extremely slender, self-securing magnetic bit holder with a quick-release function, suitable for both soft and hard screw connections. This set is ideal for use in cordless impact screwdrivers, drill drivers, and combi drills, with extremely strong magnets in the nut drivers. The set is supplied in a heavy-duty plastic case. Contents: 25mm 1/4" screwdriver bits: Slotted 5.5 and 6.5 mm Cross-head PR2 Phillips: PH1, PH2, PH3 Pozi: PZ1, PZ2, PZ3 Torx: T10, T15, T20, T25, T30, T40 50mm 1/4" screwdriver bits: Hex: 3.0mm, 4.0mm, 5.0mm Phillips: PH1, PH2, PH3 Pozi: PZ1, PH2, PH3 Torx: T10, T15, T20, T25, T30 88.9mm 1/4" bits: Slot 5.5 mm Cross recess PH 2 Cross recess PZ 2 TX T25 Drive Adapters: 1/4" hexagonal x 1/4" square, L. 50mm 1/4" hexagonal x 3/8" square, L. 50mm Socket Wrench Inserts (magnetic, with 1/4" hex drive): SW 8mm, L.67mm SW 10mm, L.67mm SW 13mm, L.67mm Bit-Holder 1/4" One-touch Slim Lock, L.66.5mm