The Wiha International 01393 is a hexagon key with a spherical end and a HEX size of 2mm. It has an overall length of 101mm. The key is designed with a wrench-style shape for increased leverage and torque when used. The head of the key is knurled for improved grip and the material is made of Chrome-Molybdenum-Vanadium alloy for strength and durability. The surface is treated with a chrome-plated finish for rust resistance.