Genuine Fender PartA genuine Fender truss rod wrench is exactly the right tool to use when setting up and maintaining your Fender bass. 3/16 inch T-Style Ball-End Hex (Allen) with rubber grip. Used with American Deluxe, American Standard, and Highway One (US) basses.Features:Truss Rod Adjustment Wrench3/16 inch T-Style Ball-End Hex (Allen) with rubber grip.Used with American Deluxe, American Standard, and Highway One (US) basses.Item Number: 004-8693-000