This a precision manufactured set of professional precision screwdrivers made by a highly respected tool manufacturer in the Czech Republic. This set is designed to meet the needs of both professional and hobbyist gunsmiths, woodworkers, mechanics, and machinists. Screwdriver blades are constructed of Chromium-Vanadium steel alloy. Tips features a parallel grind for a more precise fit in screw slots minimizing the potential for damage to screw heads when torque is applied. Handles are composed of European stained Beech wood with a solid brass ferule. Set contains 3 sizes: 3/16”, 1/4" and 5/16”.