The Wiha International 33725 Screwdrivers, Nut Drivers & Socket Drivers are made from hardened and tempered steel to be strong and durable for all types of tasks. This set of tools features six different drivers with different sized shafts and sizes: Phillips PH#1, PH#00, Torx® T10, T15, T20, and Slotted 4.5 mm. The handles are good sized, and have a comfortable grip, with a thumb notch at the base, making it easier to apply torque. Each driver is chrome-plated for rust resistance. With all of these features, these drivers are sure to be helpful for any situation you may find yourself in.