Hex keys or Allen keys as they are sometimes referred to are commonly found in many applications these days, from trades, to automotive or even household items. Sometimes Hex bolts are used in areas where a larger amount of torque is to be applied when tightening; in automotive applications for example, in this situation using a typical Hex key can tiresome work. Often longer length Hex keys as found in the ToolPro T-Handle Hex Key Wrench Set are required to provide the extra leverage needed to tighten or loosen more heavily torqued Hex bolts. This kit contains 8, common metric hex key sizes all made from quality chrome vanadium (CR-V) steel and contained in a handy storage rack for simple organisation.