Detail 01
25/64-inch post hole
Accommodates heavier-gauge strings.
Product detailSKU #1500000429373
GroverRotomatics With 18:1 Gear Ratio 102-18 Series Standard Button Tuning Machines Chrome
1/8
Independent shopping perspective
The Korena take
For guitars needing a chrome standard-button tuner set, Grover Rotomatics 102-18 Series machines combine a sealed, lubricated 18:1 gear ratio with adjustable tension. The oversized housing has a 25/64-inch post hole to accommodate heavier-gauge strings, while the 28.2 mm post leaves more room for winding during a restring. Tuning is described as smooth and backlash-free, giving the player a controlled adjustment point at each string.
Strong match
Who this is for
- Guitar setups using heavier-gauge strings that need the stated 25/64-inch post hole.
- Restringing work where a 28.2 mm post's added winding room is useful.
What matters in use
The specifications, translated
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 02
28.2 mm post
Provides more winding room.
Detail 03
Countersunk tension screw
Allows adjustment of tuning tension.
Final check
Know before you order
- 01Check that your guitar's requirements suit the 25/64-inch post hole and 28.2 mm post.
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01Are these suitable for heavier-gauge strings?
The oversized housing includes a 25/64-inch post hole that accommodates heavier-gauge strings.
02Can the tuning tension be adjusted?
Yes. The countersunk tension screw lets you adjust it to your preference.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
4 detailsOther
- Category Source
- detail
- Tier
- new
- Korena Special
- false
- Source Id
- site51500000429373
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