【S2 Tool Steel】Meet international standards: tempered at 350-800 deg F to obtain hardness of Rockwell C 58-62, stands up to abuse.
【CNC Machined】Achieve Negative tolerance: 0.2mm less than international standard. Precise fit, which is essential for optimal performance.
【Strong Magnetic Tips】-More handy to pick up screws/easier positioning. 【Phosphated Black Surface】-Ensures no rust in high humidity.
【Well-put-together hex bit set】Good for consumer electronic repair, furniture assembly etc. For example R/C trucks, 3D printers, bed frame, motorcycle and auto, rifle scope, bike etc.