FLEXTORQ bits are engineered for durability. This latest generation from DEWALT redefines fitment and performance with overhauled tip geometries. DEWALTs newest FLEXTORQ PH2 bits deliver 100% more screws per bit" . The redesigned tip geometries for use with T20 to T40" size fasteners deliver from 2x up to 5x superior fit. Every FLEXTORQ bit features a FLEXTORQ zone designed to absorb impact for up to 200x longer life.