Detail 01
Replaces the low-E fine tuner
You lose the fine tuner on that string — tuning the low E goes back to the headstock nut.

Independent shopping perspective
Drop-D tuning key that replaces the low-E fine tuner on a Floyd Rose bridge. Pull for D, push for E, no retuning.

Strong match
Consider the trade-offs
What matters in use
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 01
You lose the fine tuner on that string — tuning the low E goes back to the headstock nut.
Detail 02
Standard to drop D in a second, mid-song, without touching the tuning pegs.
Detail 03
It threads into the bridge saddle. Non-Floyd tremolos and hardtails are not compatible.
Detail 04
Matches chrome Floyd Rose hardware; will stand out on black or gold bridges.
Detail 05
Dropping one string changes spring tension, so a fully floating bridge may need setup to return true.
Final check
Product questions
Straight answers to the questions shoppers most often ask about this product.
Only on a double-locking Floyd Rose bridge. It replaces the low-E fine tuner. Hardtails and non-Floyd tremolos will not accept it.
Yes. The D-Tuna takes that fine tuner's place, so low-E tuning happens at the headstock.
No. It is a fixed drop-D system — one step down on the low string.
It returns to pitch once set up correctly. A floating bridge needs the trem blocked or the setup dialed in first.