guyker HK-cap-001-CKB034-CR-set4 Metal Guitar Knobs, Chrome Zinc Alloy
Product description
What to know
For guitarists and bass players replacing worn controls or refreshing an instrument’s appearance, these guyker knobs combine a chrome finish with a Tree of Life top design. The set includes four dome knobs made from zinc alloy. Want a decorative detail that still serves a practical purpose? Deep side grooves provide a grippy surface for volume and tone adjustments, while the 6.3 mm inner diameter is intended for compatible potentiometer shafts.
Each knob measures 20mm in outer diameter and 17.16mm in height. These dimensions and the shaft opening help you assess the fit for a replacement or project before installation. The knobs are designed for electric guitar and bass volume or tone controls, they can also be used on other equipment when the control shaft matches. Compared with a plain control knob, the Tree of Life top gives the instrument a more distinctive visual accent without changing the role of the control.
- Type: Dome control knobs
- Material: Zinc alloy
- Finish: Chrome
- Inner diameter: 6.3 mm
- Dimensions: 20mm outer diameter, 17.16mm height
- What’s included: Four knobs
Practical tips

Match the 6.3 mm opening to the potentiometer shaft on your instrument. For a split shaft, align the knob’s set screw with the split before tightening. For a solid shaft, tighten the screw against the shaft. This straightforward fit check helps make the knobs suitable for a planned replacement without relying on appearance alone. If you are updating several controls, the four-piece set gives you matching knobs for a consistent look across the instrument.
Everyday use


Use the knobs to adjust volume or tone on an electric guitar or bass, whether you are replacing a damaged control knob or completing an instrument project. The grooved sides offer a defined grip when making small adjustments during practice, rehearsal, or performance, and the chrome finish pairs with the Tree of Life detail for a coordinated hardware accent. The same control-knob function can suit other musical equipment when its shaft dimensions match, making the set useful for more than one type of project.
The design brings together two practical priorities: a compatible shaft opening and an easy-to-distinguish decorative top. That makes it a fitting choice when a basic replacement would restore control but you also want a visible style update. Check the shaft type and the stated dimensions against the part being replaced, then choose the four-piece set when matching knobs across multiple controls is part of the project.
Before you decide

What controls are these knobs designed for? They are intended for electric guitar and bass volume or tone controls. They can also serve on other musical equipment when the potentiometer shaft matches the knob’s opening.
How do you install them? On a split shaft, align the set screw with the shaft split and tighten it. On a solid shaft, tighten the screw against the shaft.
What comes in the set? It includes four chrome dome knobs with a Tree of Life top design, intended to provide a matching set for an instrument project.
Final verdict
For a guitar or bass project that calls for four coordinated controls, this set combines a 6.3 mm shaft opening, grippy side grooves, and a chrome Tree of Life design. It suits players who want a functional volume or tone knob replacement with a more distinctive look, provided the shaft matches.
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