SwissGrip Evo screwdrivers, with hexagonal bolster for use with a wrench for Torx® screws with bore in the tip, for screws with and without tamper-resistant pin with hexagonal bolster for transmitting high torques and loosening seized screw precise, true-to-size tips, optimal fit in the screw heads optimized handle shape for maximum transmission of force and exceptionally high torques SwissGrip Evo’s superior ergonomics ensure effortless, fatigue-free work non-slip and comfortable grip – for safメーカー公称