22-Piece Set of Industrial-Grade Strong Magnetic S2 Alloy Steel Screwdriver Bits, Portable Shock-Resistant Rubber Case Storage, Covering All Types Including Phillips/Flathead/Mi-Shaped/Square, Ultra-High Hardness, Rust-Proof, Wear-Resistant, Impact-Resistant, Designed for Precision Repairs, Suitable for Disassembling Mobile Phones/Computers/Watches/Home Appliances, Model Diy, and Everyday Office Tools