This DEWALT screwdriver set includes a variety of handle sizes and tip types to help you complete a number of fastening projects. The steel bars are chrome plated for corrosion resistance, while the tips are both magnetized and black oxide coated for a tighter fit within the screw, reducing both stripping and cam-out.Lastly, the soft, ergonomic, bi-material grip offers maximum comfort and torque. These screwdrivers are GUARANTEED TOUGH.