... , PCB board repairs, assembling or disassemblingC. Complete size for different screws, ideal for your telecommunication tools ... High carbon steelscrewdriver Head : slotted, phillips, Torx, Hexscrewdriver size:3x75mm,4x100mm ,5x100mm,5x125mm,6x100mm ,6x125mm ,6x150mm,6x200mm ,8x150mm ... or any other pattern. the magnetic head with best hardness and torque5, full range of size are available screwdriver ...