Gotoh Compact Bass Guitar Tuner, 2L+2R Set, Black

Enclosed-Gear Tuners For Smaller Bass Guitar Pegheads, With 7/16''-Diameter String Posts And Threaded Hex Bushings. 9/16''-Diameter Pegholes Required.Precision 20:1 Gear Ratio With Sealed Lubricationcast Housings And Metal Knobsblack Finishset Of 4, For 2-Left/2-Right Pegheadsmounting Hardware (4 Screws, Bushings And Washers) Includedpilot Holes Requiredinstalling Delicate Screws Such As These Into Hard Maple Requires Great Care And Accuracy. We Highly Recommend Using A No.50 Bit For The Pilot Hole Before Installing These Screws. Lubricate The Screw Threads With Cutting Lubricant (Also Wax Or A Bar Of Soap) To Reduce Friction And Help Them Thread Properly.