Wrenches, Box End Wrench, Ratcheting Configuration Non-Ratcheting, Single End, Reversing No, Box End Style Spline, SAE, Wrench Head Sizes 5/16 In., Number of Points 12, Overall Length 6-1/4 In., Insulated Finish, Wrench Material Steel, Insulated Yes, Standard Tool (Accessory Needed for Tethering), Offset 30 Degrees , Head Movement Fixed, Wrench Shape Straight, Standards IEC 60900, DIN EN 60900, Features 1000VAC Rated