Specifications: Heat treated chromimum vanadium steel material, durable to use. Precisely-sized, chamfered ends insert smoothly into fastener head, reducing wear. High visibility sizes marked on case for fast size selection. Extra long arm series can save strength and time for enable pleasant operation. Type: Hexagon Wrench Material: Chromium Vanadium Steel Quantity: 8Pcs Standard System: Metric Hardness: HRC52-54 Features: Durable, Universal, Hexagonal Size Details 0622: 13mm x 82mm x 142mm/0.51" x 3.23" x 5.59" (Approx.) 0623: 13mm x 78mm x 195mm/0.51" x 3.07" x 7.68" (Approx.) Notes: Due to the light and screen setting difference, the color of item may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 8 x Hexagon Wrenches