Flextorq? bits are engineered for durability. This latest generation from DEWALT? redefines fitment and performance with overhauled tip geometries. DEWALT?'s 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 great fit. Every Flextorq? bit features a Flextorq? zone designed to absorb impact for up to 200x longer life.