Precision Screwdriver Set, 32-in-1 Mini Screwdriver Set Hex Wrench Repair Tools for iPhone Laptop Laptop Watch Jewelry Toys Glasses MacBook High Quality: These durable screwdriver bits are made of CRV steel, whose hardness can reach HRC52 -56, which ensures long-term use. Precise Design: The precision screwdriver is designed with a 3-level adjustable post and a magnetic head for easy use. The handle is non-slip and comfortable to hold thanks to its ergonomic design. 30 screwdriver bits included: Five-star screwdriver bits: 0.8, 1.2; Torx screwdriver bit: T1, T2, T3, T4, T5, T6, T8, T10; Triangular screwdriver bit: 2.0, 2.3; Y screwdriver bit: 0.6, 2.0; Phillips screwdriver bit: 1.5, 2.0, 2.5; Flat screwdriver bit: 1.2, 1.5, 2.0, 2.5, 3.0; SIM card screwdriver bit: 0.8; Hex screwdriver: H1.3, H1.5, H2.0, H2.5, H3.0, H4; U screwdriver bit: U2.3 Portability: The plastic storage box holds the screwdrivers, easy to carry anywhere and fix each screw head on the holder. Multi-function: The adjustable set can be used for all purposes. p>