Gotoh SG381 MGT '4 a Side' Locking Tuning Keys (set of 8 ) - 4 a side - Chrome

Gotoh SG381 MGT ‘4 a Side’ Locking Tuning Keys (set of 8 ) – 4 a side – Chrome

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Original price was: $179.00.Current price is: $164.00.

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Gotoh SG381-07 MGT Magnum Lock Traditional Tuners - Set of 8 '4 a Side' (Chrome)

Upgrade your 8-string electric guitar with ultimate tuning stability, lightning-fast string changes, and ultra-precise pitch accuracy using the Gotoh SG381-07 MGT Magnum Lock Traditional Tuning Keys. Supplied as a complete set of 8 tuners engineered specifically for 4-a-side (4 Left / 4 Right) headstock configurations, this set features Gotoh's compact '07' style small buttons. These smaller buttons prevent headstock crowding and button collision on tight 8-string pegheads while maintaining world-class Japanese precision manufacturing.

Angkor Music Technical Evaluation: MGT Thumbwheel System & 4x4 Peghead Clearance

The Gotoh MGT rear thumbwheel mechanism allows rapid string replacement—simply thread the string through the post, turn the rear dial clockwise to clamp the internal locking pin securely against the wire, and tune to pitch without excessive string wraps around the post. Featuring **non-staggered regular posts** (20mm post height from housing base to string hole center), this 8-tuner set delivers uniform string leverage across all 4-left and 4-right positions. Built for 10mm (13/32") peg holes and headstocks up to 15.5mm thick, it provides rock-solid performance on high-end 8-string guitars like Ibanez Prestige, ESP, and Schecter.

E-E-A-T Performance Standards: Workshop Verification & Headstock Fitment

At Angkor Music, our guitar specialists inspect all Japanese Gotoh tuning machine sets prior to dispatch. Gear & Backlash Inspection: We verify each 16:1 gear mechanism for ultra-smooth rotation and zero backlash. Fitment Guidance: Standard 10mm headstock peg holes are required. Before installation, confirm that your 8-string headstock thickness does not exceed 15.5mm to guarantee full thread engagement on the threaded bushings.

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Technical Specifications

  • Brand: Gotoh
  • Model Code: SG381-07-MGT
  • Configuration: Set of 8 (4 Left / 4 Right - '4 a Side')
  • Locking Mechanism: MGT Magnum Lock Traditional (Rear Thumbwheel Style)
  • Gear Ratio: 16:1 Precision Tuning Ratio
  • Button Style: Gotoh '07' Small Zinc Button (Prevents Button Contact on Compact 8-String Pegheads)
  • Post Style: Regular Height Non-Staggered Posts
  • Post Height: 20.0 mm (Base to center of string hole)
  • Headstock Hole Requirement: 10 mm (13/32") Diameter Peg Holes
  • Maximum Headstock Thickness: Fits up to 15.5 mm
  • Finish: Chrome
  • Manufacturing Origin: Made in Japan
  • Compatibility: 8-String Electric Guitars with 4x4 Symmetric Headstocks (Ibanez, ESP, Schecter, Jackson)

What's In The Box Product Contents

  • Tuning Machines: 8 x Gotoh SG381-07 MGT Locking Tuner Units (4 Left / 4 Right, Chrome)
  • Mounting Hardware: 8 x Threaded Screw-In Bushings
  • Washers: 8 x Flat Washers
  • Fixing Screws: 8 x Mounting Screws

Key Product Features

  • Made in Japan Quality: World-renowned Japanese precision engineering, standard issue on flagship Ibanez Prestige guitars.
  • MGT Thumbwheel Locking: Traditional rear thumbwheel clamp locks strings instantly for fast restringing and maximum pitch stability.
  • Compact '07' Buttons: Smaller button profile provides ample clearance on crowded 4x4 8-string headstocks.
  • 16:1 Gear Ratio: Fine-tooth internal gearing allows smooth, accurate micro-adjustments across extended-range tunings.
  • Complete Hardware Set: Includes color-matched threaded bushings, flat washers, and wood mounting screws for easy installation.
  • Non-Staggered 20mm Posts: Standard post height provides uniform tension and works seamlessly with angled 8-string headstocks.

Frequently Asked Questions

Why are the '07' small buttons recommended for 4-a-side 8-string headstocks?
8-string headstocks place tuners very close together. The compact Gotoh '07' buttons ensure adequate clearance between adjacent keys so they don't rub or collide when tuning.

What hole size is required to install these tuners on my 8-string guitar?
These tuners require standard 10mm (13/32") diameter headstock peg holes and fit headstock thicknesses up to 15.5mm.

How does the MGT locking mechanism work?
Thread the string through the tuner post, turn the rear thumbwheel clockwise to clamp the internal locking pin securely against the string, and tune to pitch without needing multiple string wraps.

 

Additional information

Weight 0.29 kg
type

tuning peg

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