The screwdriver set is lightweight and portable. Every household should have a 22 in 1 screwdriver set. The set has everything you will ever need for small jobs around the house! This is an ideal and necessary item for everyone. These screwdrivers are great for repairing any problem you have. The manual screwdriver body is made of aluminum, which is sturdy and practical. The end of the screwdriver handle can hold 10pcs bit at a time, which is portable for disassembly and assembly. The full arc design fits the palm arc, and the anodizing process exquisitely treats the surface of the whole machine. One large and one small manual screwdriver meets precise and daily home use. The bits are made of S2 alloy steel and matched with CNC's precise forming process, which can be accurately matched every time they are used. The magnetic bit is easy to assemble and not easy to lose. Bits of different specifications can meet different needs. Specifications:Material: AluminumBit Material: S2 alloy steel (hardness60±2HRC)Torque Range: 0~2N.m Household Type: 10pcsSL: SL4, SL5, SL6PH: PH-0, PH-1, PH-2H: H-3, H-4, H-5, H-6 Precise Type: 10pcsPH: PH-000, PH-00, PH-0SL: SL1, SL2, SL3P: P2, P5H: H-1.5, H-2.0 Size:Household Bit Type: 6.3 x 25mm / 0.2 x 1.0inPrecise Type: 4 x 28mm / 0.2 x 1.1inHousehold Screwdriver Size: 182 x 27mm / 7.2 x 1.1inPrecise Screwdriver Size: 121 x 10mm / 4.8 x 0.4inPackage Size: 225 x 67 x 45mm / 8.9 x 2.6 x 1.8in Package Includes:2 x Handle20 x Bit1 x Storage Box