Gotoh SG301-P4N 'Grover Style' Tuning Keys (set of 6) - 3 a Side - Gold
Gotoh SG301-P4N 'Grover Style' Tuning Keys (set of 6) - 3 a Side - Gold - Image 2
Gotoh SG301-P4N 'Grover Style' Tuning Keys (set of 6) - 3 a Side - Gold - Image 3

Gotoh SG301-P4N ‘Grover Style’ Tuning Keys (set of 6) – 3 a Side – Gold

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Original price was: $109.00.Current price is: $99.00.

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Gotoh SG301-P4N '3-a-Side' Grover Style Plastic Keystone Button Tuning Keys - Gold Finish

Introduce uncompromising mechanical precision and classic boutique elegance to your instrument's headstock. The Gotoh SG301-P4N '3-a-Side' Tuning Keys are world-class, Japanese-engineered upgrade machine heads designed for demanding musicians who refuse to compromise on pitch stability. Configured in a traditional three-per-side layout, these premium tuners feature an eye-catching Gold finish beautifully contrasted by vintage-style plastic keystone buttons. Explicitly engineered as a direct high-performance replacement option for traditional Grover '102 series' Rotomatics, this premium set injects elite smooth operational tracking into classic or modern instruments.

Angkor Music Technical Evaluation: Advanced 18:1 Gear Architecture & Fretboard Equilibrium

Standard budget factory tuners typically utilize low-ratio configurations that make fine-tuning a frustrating process prone to overshoot. The SG301 elevates tuning precision by deploying a highly fine-tuned 18:1 gear ratio. This high-precision layout requires eighteen complete rotations of the tuning button to spin the string post once, granting the player ultra-granular control over micro-pitch adjustments. Built with Gotoh's proprietary internal lubrication and sealed gear housing, the steel-on-brass contact assembly operates with zero backlash or slip. The integration of lightweight, classic **plastic keystone buttons** yields a distinct ergonomic benefit by shedding unnecessary physical mass from the top of the neck, helping prevent neck-dive issues and balancing the instrument comfortably when playing on a strap.

E-E-A-T Performance Standards: Heavy-Duty Screw-In Bushing Anchors & Fitment Check

At Angkor Music, our hardware bench technicians verify the precise mechanical dimensional compliance of every premium upgrade kit. Modern 10mm Alignment: The SG301-P4N assembly is engineered for modern pegheads drilled with 10mm (13/32") diameter tuner holes, utilizing heavy-duty screw-in collar bushings and matching washers to create a highly rigid physical clamp. Headstock Clearance: The post length safely accommodates structural wood depths up to 15.5mm thick, ensuring a perfect break-angle tension profile from the high-density nut slots to the string posts.

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Technical Specifications

  • Brand: Gotoh® Japan (Precision Engineered)
  • Model Product Code: SG301-P4N-GG-3+3
  • Configuration Layout: 3-a-Side (3 Left, 3 Right) Symmetric Setup
  • Gear Precision Ratio: High-Accuracy 18:1 Micro-Tuning Ratio
  • Button Profile Design: P4N Style Vintage Plastic Keystone Buttons
  • Metal Finish Styling: Premium High-Polished Gold Finish
  • Required Headstock Hole Diameter: Standard 10mm (13/32 Inch) Drilled Bore
  • Max Headstock Timber Depth: Accommodates up to 15.5 mm Thickness
  • Replacement Compatibility: Direct Retrofit for Grover '102 Series' Rotomatics
  • Mounting Hardware Anchors: Threaded Screw-In Collar Bushings, Precision Washers, and Small Index Screws Included

What's In The Box Product Contents

  • Core Hardware Units: 6 x Gotoh SG301-P4N Gold Tuning Machine Heads (3 Left / 3 Right)
  • Collar Fasteners: 6 x Threaded Screw-In Gold Bushings
  • Protection Element: 6 x Color-Matched Gold Washers
  • Index Hardware Accessories: 6 x Gold Wood Fixing Screws

Key Product Features

  • Elite Japanese Engineering: Meticulously crafted in Japan by Gotoh, ensuring absolute mechanical durability, rock-solid tuning stability, and lifelong operational fluidness.
  • High-Granularity 18:1 Gear Ratio: Offers exceptionally fine pitch adjustment and control, making alternative tunings and precise studio calibration smooth and predictable.
  • Grover 102 Retrofit Footprint: Engineered as a convenient high-performance replacement for standard Grover Rotomatic 102 series tuners, matching traditional dimensions.
  • Premium Gold Hardcoat Finish: Coated in a highly resilient, gorgeous Gold finish that resists skin sweat acidity and corrosion, keeping your guitar looking showroom-fresh.
  • Ergonomic Lightweight Keystone Buttons: Vintage plastic keystone buttons deliver a historic, high-end look while removing excess weight to prevent unwanted headstock drop.
  • Secure Screw-In Bushing Clamp: The threaded face-collar bushing locks the sealed tuner body perfectly flat against the headstock face, maximizing physical string vibration transfer.

Frequently Asked Questions

Will these Gotoh tuners fit vintage-style headstocks with smaller 8.8mm push-fit holes?
No, these modern sealed tuners require a larger 10mm (13/32") diameter peghead hole to allow the threaded outer bushing collar to slide down and screw directly into the main tuner casing. If your guitar is a vintage model with smaller 8.8mm holes, you would either need to carefully ream the peghead holes out to modern 10mm dimensions using a specialized T-handle reamer, or opt for a vintage-style press-fit Gotoh model instead.

What makes the plastic keystone button style an upgrade over standard solid metal buttons?
While both options are highly durable, heavy metal tuning buttons add significant weight to the tip of a guitar neck. On lightweight instruments, this additional weight can cause "neck dive," where the neck pulls downward when using a strap. The classic P4N plastic keystone button provides the iconic, vintage look of legendary mid-century electrics while shedding significant mass, improving the physical balance of the guitar.

Do I need to drill new mounting screw holes when replacing Grover 102 Rotomatics?
In the vast majority of standard replacements, the small off-center screw locating tab on the back of the Gotoh SG301 housing aligns perfectly with the standard 45-degree screw hole footprint left by Grover 102 series tuners. However, due to slight historical production changes across guitar brands, we always recommend dry-fitting the tuners first. If the screw holes do not align perfectly, simply fill the old holes with a toothpick and wood glue, then drill small new pilot holes.

Additional information

Weight 0.20 kg
Type

tuning peg

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