The screw driver is made of high quality chrome vanadium steel, and high hardness, strict quality control and quality assurance, high safety factor,so air blow gun can be used safely. The length of the screw driver is about 25 mm, which is suitable for disassembly and assembly of electronic products, mobile phones, tablet computers, cameras, watches, glasses, notebook computers, notebook hard disks, etc. Air blow gun is designed with rubber ring, which is easy to operate without slipping. It is in line with the design principle of ergonomics, labor-saving and not easy to fatigue. The hardness of the screw driver is hrc52-54, with standard process, smooth and easy to operate, good toughness and wear resistance, strong corrosion resistance, oxidation resistance and long service life. We attach importance to the feedback from every customer and always provide excellent customer service., Weight: 0.31746565728 pounds, Manufacturer: ViaGasaFamido