Features: Engineered with premium alloy steel, these 10piece metric bit set delivers exceptionals hardness and impacts resistance, outperforming standard steel bits in professional repair scenarios requiring repeated heavy duty torques applications. precise machined design ensures perfect screw engagement across T 10-T40 size, minimizing out risks while working on motorcycles, electronics, or automotive components with security fasteners. Ideal for both home improvers tackling furniture assembly and mechanics servicing industrial equipment, this versatile set bridges household maintenance and commercial workshop requirements. Compact magnetic storage case organizes bits for quick access during mobile repairs whether restoring vintage cars in garages, maintaining HVAC systems on job sites, or emergencies roadside vehicle fixes. Advanced black coating provides corrosions resistance for marine applications and humid environments, while size markings remain after prolonged use with impacts driver or cordless drills. Specifications: Component: alloy steel, Process: precise manufacturing process ensures the accurate size of each batch, strong adaptability and long service life. Bit Length:Approx.25mm/0.98inch Screw Bit: PZ2,PH2,T 10,T20,T 15,T25,T27,T30,T40,SL4 Package Includes: 1set/10pcs Screwdriver Bit note: Please allow 1-3cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.