Grace USA's 11-Piece Star Screwdriver Set is precision manufactured and hand assembled entirely within the United States, and is designed specifically to serve the needs of both professional and hobbyist gunsmiths, woodworker, mechanic, and machinists. Each screwdriver is constructed of USA 8650 Chromium-Vanadium steel alloy blades, and features a black oxide-finish and is precision made for a snug fit between the driver and fastener that minimizes the potential for damage to the screw head when torque is applied. Handles are composed of turned Maine USA hardwood, topped off with a USA nickel-plated steel ferrule. Each set comes packaged in a plastic storage sleeve. The quality of materials and workmanship put into this tool set ensures it will provide years of reliable service. This Set Includes the following Star Head Screwdriver Sizes: T5 T6 T7 T8 T9 T10 T15 T20 T25 T27 T30. All Grace USA products are proudly 100% Made in the USA.