Handy sets fit your pocket or tool box easily and help eliminate the lost-key problem. Hex wrenches open independently up to 270-degrees. 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. Two key positions (straight-out or right angle) for extra leverage. Holder serves as a handle. Tough, heat-treated alloy steel.