From the Manufacturer
Wiha 76191 Torx socket set on rail. Ten piece set includes T7, 8, 9, 10, 15, 20, 25, 27, 30 and T40. 1/4-Inch square drive, replaceable bit sockets. Bits chrome-vanadium-molybdenum tool steel.
Made in Germany by: Wiha Quality Toolswhich offers a lifetime guarantee on most all of their tools.