53099 is a 10 piece SoftFinish X heavy duty slotted and phillips screwdriver set. Wiha SoftFinish driver handles are the standard for professional quality. Featuring an 8-edged large-diameter comfort grip, SoftFinish provides puts the maximum surface area in the palm of your hand for efficient torque and less fatigue. Each handle is sized proportionately to their driver blade profile or intended application to enable optimal turn-force. Constructed of direct-molded dual durometer materials the SoftFinish driver handle stands up to the heavy everyday use of professionals. The extra heavy design features a metal striking cap for hammer impact resistance and hex bolstered blades for wrenching function and torque strength.