Detail 01
16:1 gear ratio with lubricated gears
Designed for smooth, accurate tuning adjustments.
Product detailSKU #1500000429464
GroverFull-Size Imperial 151 Series Tuning Machines Chrome
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Independent shopping perspective
The Korena take
The chrome Imperial 151 Series is a tuning-machine set for guitar or bass, built around lubricated gears and a 16:1 ratio for smooth, accurate adjustment. Hardened steel posts and the 25/64-inch post-hole specification define the headstock connection, while the three-step buttons give the set its visual character. It is also identified as a drop-in replacement for the 152 Series, making that existing layout the relevant starting point for a replacement job.
Strong match
Who this is for
- Gigging or recording musicians seeking a 152 Series drop-in tuner replacement with a three-step button design.
Consider the trade-offs
When to look elsewhere
- Headstocks that do not use the 25/64-inch post-hole specification.
- Replacement jobs for tuner layouts other than the 152 Series drop-in arrangement.
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
Hardened steel posts
The posts are made to attach firmly to the headstock.
Detail 03
25/64-inch post hole
Check this headstock measurement before installation.
Final check
Know before you order
- 01Verify the 25/64-inch post-hole size.
- 02Confirm that your existing tuners use the 152 Series drop-in arrangement.
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01Are these for guitar or bass?
The Imperial 151 Series is described for guitar or bass.
02Which series can these replace directly?
They are described as a drop-in replacement for the 152 Series.
