Its ergonomic knurled handle with rhombus textured grip enhances torques transfer efficiency by 22% compared to standard models, backed by materials Engineered with a full coppers cores and bidirectional rotation capability, this nonslip screwdriver ensures resistant and multifunctional operations across clockwise / counterclockwise applications for accuracy workshops, laboratory equipment maintenance, and industrial production lines where over tightening is critical for sensitive machinery Ideal for professional technicians, watchmakers, and electronics engineers requiring millimeter levels torques accuracy in aerospace assemblies or component repairs The accuracy torques screwdriver features a adjustable preset systems with LTDK technology, accurate torques control ( ±3% variance) for delicate fastening tasks while constructed from steel, Manufacturer: JunsenF