The Klein 70591 Nine-Key Inch Folding Hex-Key Set is a handy sets that fits your pocket or tool box easily to help eliminate the lost-key problem. It is made from tough, heat-treated alloy steel, and the 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. The holder serves as a handle. Two key positions (straight-out or right angle) for extra leverage. Nine-key set sizes: 5/64-Inch, 3/32-Inch, 7/64-Inch, 1/8-Inch, 9/64-Inch, 5/32-Inch, 3/16-Inch, 7/32-Inch and 1/4-Inch. Handle Length: 4-1/4-Inch. Key Lengths: 1-3/4-Inch-3-1/2-Inch. Weight: 0.50-Pound. Safety information: Always wear approved eye protection. NOT insulated-will NOT protect against electrical shock. Do NOT use a pipe or similar extension to increase leverage.