11 pieces precision screwdriver set with black case. Made of hardened and tempered carbon steel blades, black oxide finish shaft for durability. Zinc plated alloy steel handles with free-turning speed cap for easy accurate driving. Has flat: 1.0, 1.2, 1.4, 1.8, 2.4, 3.0-mm. Phillips: PH-# 1, 0, 00 and awl.