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Categories›Guitars and Basses›Grover 509BC Locking Rotomatics 3+3
Grover 509BC Locking Rotomatics 3+3
Updated 7 May 2026
BrandGrover
CategoryGuitars and Basses > Guitar & Bass Spare Parts > Guitar/Bass Machine Heads > 3L/3R Tuning Machines for Guitar
Available at1 UK stores
90-day avg£156.40
Grover

Grover 509BC Locking Rotomatics 3+3

£155.90Fair Price
Cheapest at Thomann · 1 store
Buy at Thomann — £155.90
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CHEAPEST£155.90
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PRICE HISTORY
Current
£150
Change
+1.0%
Avg
£148
Low
£141
High
£156
Volatility
2.8%
PRODUCT DESCRIPTION
  • Grover 509BC Locking Rotomatics 3+3
  • Locking Machine Heads Set For Electric Guitars
  • Configuration: 3 right
  • 3 left
  • Roto-Grip locking rotomatics with a 3-step head
  • Enclosed
  • Gear ratio: 18:1, "Thumb Screw"" locking mechanism
  • Shaft diameter without mounting sleeve: 5.9 mm
  • Colour: Black Chrome
  • Set content 6 pieces"