Impact Control 8-piece screwdriver bit pack Phillips. The Impact Control screwdriver bit is extremely robust, ideal for heavy duty work and withstands even the large torque of impact wrenches. The special torsion zone gives the bits extreme durability for continuous load. S2 modified steel and optimised heat treatment process give maximum durability for high performance, even during extensive assembly and heavy industrial work. It has a 1/4 inch external hex shank for use with drills, screwdrivers and especially impact wrenches. Bosch Professional Pick and Click System allows you to assemble accessories individually and thus offers flexible bit assortments. The bitpacks can be replaced with the integrated snap-in drawers safely and easily. The bits are supplied in a plastic holder that simply locks into the pick and click empty boxes M and L and allows individually assembled bitsets. Box contents: 8 x PH2 - length 50 mm