KAISH K2047-BK Brass Guitar Tuner Bushings, 6.5mm I.D. x 8.8mm O.D.
Product description
For guitarists installing vintage-style tuners in a headstock with smaller tuner holes, the bushing’s inner and outer diameters are key to getting the right fit. These KAISH bushings are sized for vintage-style setups rather than modern 10mm tuner holes.
The K2047-BK set features solid brass construction and a black finish. Its 6.5mm inner diameter and 8.8mm outer diameter identify the size for matching the tuner posts and existing headstock holes.
Use them when fitting compatible vintage tuners to guitars with the corresponding hole and post measurements. Measuring both before installation helps you select the appropriate bushing size for your setup.
Size & fit
These bushings are intended for vintage tuner installations in smaller headstock holes, commonly 5/16-inch or 11/32-inch. The 6.5mm inner diameter is specified for most USA vintage tuners, Kluson vintage tuners with 6.3mm string posts, and Gotoh SD Series standard vintage tuners. It is not the size specified for Gotoh locking tuners. The listed outer diameter is 8.8mm, so match it to the existing headstock holes as well as the tuner posts.
Before fitting, measure the diameter of the string posts and the holes in the guitar’s headstock. This is especially useful when working with a vintage ST, TL, or LP-style guitar, since the tuner post and hole measurements determine whether this particular size is appropriate. These bushings are not designed for modern 10mm tuner holes.
Pros
Solid brass construction gives the bushings a substantial, durable build for tuner installation, while the finished surfaces are described as burr-free. The black color provides a coordinated option for hardware where a dark finish suits the guitar.
The press-fit, drop-in design is intended to make installation straightforward. For a repair or hardware update, these bushings provide a way to fit compatible vintage-style tuning machines to the smaller headstock holes they are designed for. Compared with replacing a set of tuners to match a different hole size, matching bushings to the existing holes can support a vintage-style tuner setup while keeping the focus on the required fit.
Tech specs
- Type: Guitar tuner bushings
- Material: Solid brass
- Color: Black
- Inner diameter: 6.5mm
- Outer diameter: 8.8mm
- Installation: Press-fit, drop-in
- Compatibility: Most USA vintage tuners, Kluson vintage tuners with 6.3mm string posts, Gotoh SD Series standard vintage tuners
Should you buy it?
Choose the KAISH K2047-BK when your project calls for vintage-size tuner bushings with a 6.5mm inner diameter and 8.8mm outer diameter. It is a practical match for compatible vintage-style tuners and smaller headstock holes, including suitable setups on ST, TL, and LP-style guitars. Confirming both measurements before installation makes it easier to select the right fit and keeps this hardware choice focused on the tuner and headstock you are working with.