Proto Duratek screwdrivers are designed to meet the demanding heavy duty needs of industrial maintenance and assembly applications. Shanks are made from premium alloy steel for greater strength and bend resistance, with chrome plating for reliable corrosion protection. Precision machined tips allow deeper screw engagement helping reduce cam-out and improving tip life. Soft-touch Duratek handles blend comfort and durability offering advanced grip for torqueing, and 2x solvent protection against most harsh chemicals including gasoline, brake fluid, ethylene glycol, ethyl alcohol, acetone, toluol, brake cleaner, and automatic transmission fluid.