Graph Tech PRL-8521-C7 Ratio Electric Locking Machine Heads with Contemporary Button - 7-String, 4 + 3 - Chrome

- locking machine heads for electric guitar
- 7-string right-hand set
- closed construction
- each machine head has its own gear ratio, calibrated for the respective string
- half turn of any key is a semi-tone pitch change for each string
- faster and more accurate tuning of each string
- thumb wheel screw on the back to lock the strings
- ratio: E - 12:1, B - 20:1, G - 35:1, D - 20:1, A - 24:1, E - 39:1, B - 48:1
- 7 pieces: 4x left, 3x right
- 2-pin mounting
- axis diameter without mounting sleeve: 5.9 mm (0.232)
- mounting diameter with mounting sleeve: 9.9 mm (0.390)
- incl. 4 sets of InvisoMatch standard mounting plates for use of existing screw holes
- weight ca. 37.75 g / 0.083 lbs (single)
- Mini Contemporary button
- chrome finish