Genuine Rotomatic® with 18:1 Gear Ratio (102-18 Series) 3x3 Chrome
Manufacturers Part Number: 102-18C

The 102-18 Series machine heads are a triumph in engineering and styling. The housing provides a maximum bearing for worm, gear, and string post. The 18:1 ratio provides for finer tuning and greater stability. The finer gears provide smoother tuning and a higher degree of backlash elimination. Countersunk tension screw permits player to regulate turning tension to any degree. Enclosed gear box with special lubricant for a lifetime of trouble-free service..

• Sealed-in, lubricated gears
• 18:1 gear ratio
• 25/64” post hole
• Post length to hole: 23mm
• Overall post length: 28.2mm
• Weight per pc/per set: 1.6oz/9.6oz
• Max. string gauge: .074”
• Hardware included (bushings, washers, screws)

• Drop-in replacement for:
102 Series
102V Series
103 Series
106 Series
109 Series
109-18 Series
135 Series (Top mounting hole will be visible)
136 Series (Top mounting hole will be visible)
502 Series
509 Series

Available in:
For standard guitars, 3 Treble and 3 Bass, Set of 6
No. 102-18N Nickel
No. 102-18C Chrome
No. 102-18G Gold
No. 102-18BC Black Chrome

W/ Keystone Buttons
For standard guitars, 3 Treble and 3 Bass, Set of 6
No. 102-18NK Nickel
No. 102-18CK Chrome
No. 102-18GK Gold
No. 102-18BCK Black Chrome

All Grover products sold by us are genuine, official Grovers in original retail packaging.