EXTREME FlexTorq screwdriver bits are designed to withstand the high forces of today's impact drivers, significantly reducing the instances of failure when fixing large screws in place. The optimised torsion zone maximizes bit life and turning force in extreme applications. The contoured area of the bit tip flexes with the torque of the impact driver, transferring maximum torque through the screw and maximizing life. This reduces breakage and wear in hard & soft joint applications. Features include a 15-degree torsion zone for flexibility, a Full Fit head to prevent screw head rounding and 'cam out', and Magnetic Screwlock for quicker and easier task completion.