The GearWrench 20-pc Master Dual Material Screwdriver Set, No. 80066, features a tri-lobe ergonomic handle designed for strength and comfort. The screwdrivers have a “Speed Zone” for turning in lower torque applications. The screwdrivers are oil- and solvent-resistant, with black oxide non-slip tips, and are laser etched with the part number and size. The set meets or exceeds ASME B107.15.