Guyker GK-D-55SP Dopamine Color Locking Tuning Machine For ST TL Guitar Color:Red + Gold + Red Button Screw at least 1 or

Screw at least 1 or two on both sides

Suitable For: Compatible 6-string folk acoustic guitars

Designed for neck/bridge humbucker pairs as a practical set for repair

String Configuration: 4-string

Peg Hole requirement= 9

Guyker GK-D-55SP Dopamine Color Locking Tuning Machine For ST TL Guitar Color:Red + Gold + Red Button Screw at least 1 or9Technical Specifications Array: 6R (For Right Hand Guitar) Guitar Gear Ratio= 1: 15 Peg Hole requirement = 9mm Weight per pc per set = 40. 7g 244. 2g String Post Diameter = 6mm Max. string gauge= 1. 8mm String Thru Hole Ctr Height= 22. 5mm Bushing Type = Screw in Hex Head WHATS INCLUDED? 6 x Guitar machine heads 6 x Threaded Bushings 7 x Mounting Screws