Check the listing for details. Klein Tools 70571 Grip-It® Ball End Hex Set, 5-Key, SAE Sizes. Condition: New. Listed at 15.99 USD. Klein Tools 70571 Grip-It® Ball End Hex Set, 5-Key, SAE SizesThe Klein 70571 Grip-It hex-key set has blades that rotate independently up to 270-Degree. It fits perfectly so that the hex tool end reduces stripping problems. The keys are industrial strength, impact-resistant and tested for performance to below freezing temperatures.Handy hex key sets fit your pocket or tool box easily and help eliminate the lost-key problemTough, heat-treated alloy steelHex-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 socketHolder serves as a handleMade in USATwo key positions (straight-out or right angle) for extra leverageBall design allows for a thicker neck diameter increasing torque capacity while maintaining operational angles to 25-PercentSize: 3/16'', 7/32'', 1/4'', 5/16'', 3/8''