For sale ( Clearout Continues )  Machine Heads ( Tuners )  4 x ( Black )  Grover ( wavy ) USA Tuners ( Machineheads ) c/w screws  14mm ( 2 a side fit so 2 x left hand 2 x right hand ) £40 Posted  4 x ( Gold ) Schaller ( Germany ) Tuners ( Machineheads ) ( no screws required ) 17mm ( 2 a side so 2 x Left x 2 x right )      £40 Posted  4 x ( Gold ) Grover ( wavy ) USA Tuners ( Machineheads ) c/w screws  17 mm  (2 a side as above )                                             £40