Graph Tech PRL-8351-BO Machine Heads

Graph Tech PRL-8351-BO Machine Heads, Set of Locking Machine Heads for Electric Guitar, Configuration: 3 left / 3 right, Right-handed set, Sealed design, Each tuner has its own gear ratio calibrated for the respective string, Half a turn of any tuner changes the tuning of the respective string by a semitone, Faster, more accurate tuning of each string, Locking screw on the back for locking the string, Gear ratio: E - 12:1, B - 20:1, G - 35:1, D - 20:1, A - 24:1, E - 39:1, 2-pin mounting, Shaft diameter without mounting bushing: 6 mm, Installation diameter with mounting bushing: 9.8 mm, Weight per machine head: Approx. 38 g, Vintage Keystone buttons, Colour: Black, Includes four sets of InvisoMatch standard mounting plates to utilise existing screw holes ...