Guitar Knobs: A Complete Buyer's Guide

Replacing your guitar's control knobs is one of those upgrades that costs almost nothing but can feel remarkably satisfying — especially when the new knobs fit your hand better, look right on the instrument, and have the number markings you always wanted. Here is what actually matters when choosing them.

The One Thing You Must Get Right First

Before anything else, figure out your pot shaft type. This is the most important variable — get it wrong and nothing else matters. Guitar knobs fit two types of pot shaft:

• Split shaft (spline) — serrated ridges on the shaft, common on Fender-style guitars and most American pots. Knobs push on without tools.
• Solid shaft — smooth shaft, common on Gibson-style guitars. Knobs need a set screw to attach.

You can identify your shaft type by removing the existing knob and looking. If your current knob has a small screw on the side, you have solid shaft pots. If it pulled off without a screw, you have split shaft.

Style: What Look Are You Going For?

Once shaft type is sorted, style is the next question. The main options are:

• Dome knobs — low-profile, clean and classic. Right at home on Stratocasters, Telecasters and their relatives. Subtle and easy to knock mid-song.
• Speed knobs — taller with a flared base. Easier to grab precisely. Common on modern guitars and those with higher-output pickups.
• Bell / top-hat knobs — the classic Les Paul look. Taller, with a distinctive tapered profile and pointer on top. Suited to solid shaft pots.
• Barrel knobs — compact, cylindrical, often metal. Less common but attractive on vintage-style and boutique builds.

Think about how you use your controls. If you ride the volume knob during solos, a larger knob with a clear grip is more useful. If you rarely touch the controls, aesthetics take priority.

Material: Plastic vs Metal

Plastic knobs (usually ABS) are lighter, cheaper and available in every colour imaginable. They are perfectly fine and the standard choice on most production instruments.

Metal knobs — aluminium or brass — are heavier, more premium in feel and hold their finish better over time. They look and feel more substantial, which some players prefer for aesthetic or tactile reasons. They cost more but are still relatively inexpensive.

For most players, the material is a personal preference question. The functional difference is negligible — prise and tone are determined by the pot, not the knob on top of it.

Indicators and Numbering

Do you want numbered markings (1–10), a single pointer line, or a smooth surface with no markings? In a studio context, numbered dials let you recreate settings reliably. Live, a single line or even no marking at all is often fine — you set by feel rather than position.

Vintage-correct builds typically use the specific period markings of the original instrument: Fender dome knobs often had no numbers; Les Paul top-hat knobs often had numbers moulded into the skirt.

Colour and Finish

The most common finishes are:

• Black — universal, suits almost every guitar.
• Amber / cream — classic for vintage Fender instruments and certain Gibsons.
• White — clean, modern look.
• Chrome / silver — metal-style, common on metal and hard rock instruments.
• Gold — warm, premium appearance, popular on vintage-style Gibson builds.

For a full rundown of every style and type, the guitar knobs explainer covers everything in detail. If you want recommendations by price tier, the best guitar knobs guide has you covered.

The Bottom Line

When buying guitar knobs: confirm shaft type first, then decide on style and size based on how you play, then let material and finish be an aesthetic choice. You cannot go far wrong as long as the fitting is right — and at typical replacement knob prices, getting a couple of options to try is not much of a risk.

Frequently Asked Questions