The Extra Heavy Duty screwdriver design features a metal striking cap for hammer impact resistance and hex bolstered blades for wrenching function and torque strength. Wiha SoftFinish® Driver Handles are the standard for professional quality. Featuring an 8-edged large-diameter comfort grip, SoftFinish® puts maximum surface area in the palm of your hand for powerful torque and less fatigue. Each handle is sized proportionately to its driver blade profile for an optimal turn-force application. Constructed of direct-molded dual durometer materials the SoftFinish® driver handle stands up to the heavy everyday use of professionals. Wiha screwdrivers consist of premium-quality tool steel engineered for performance in high-demand environments pros see every day. Each driver blade is precisely heat-treated delivering years of service life, and the screwdriver tips are precision machined for an exact fit, nearly eliminating the potential for fastener head cam-out. Wiha premium quality SoftFinish® Drivers are designed and engineered by Wiha Germany, Manufactured in Germany, and backed by the Wiha No Hassle Guarantee.