Klein hex keys are the tools professionals cannot afford to be without Heat-treated and tempered for superior strength and durability Handy sets fit your pocket or tool box easily and help eliminate the lost-key problem Hex-key ends are square-cut for a secure full-depth fit and maximum contact with the hex socket to prevent slippage and stripping of the socket Holder serves as a handle Two key positions straight-out or right angle for extra leverage Warnings Always wear approved eye protection///-Tools/Hand Tools/Hex Key Sets