The 109 Series 3-step button gives these machine heads a distinctive look and sets them apart from other Rotomatics®. The housing provides a maximum bearing for worm, gear and string post. Gear ratio is 14:1. Worm and gear are precision-cut for perfect meshing. eliminating backlash and slippage. 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.

Specifications

• Sealed-in, lubricated gears
  
• 14:1 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

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