Fret Rocker for Guitar, Bass and now Mandolin and Ukelele

Rated 5 out of 5 based on 1 customer rating
(1 customer review)



Crimson’s new and improved steel Fret Rocker, now with 5 precision ground straight edges, is the first rocker to work on Guitars, Bass Guitars, and Mandolins, (and other short scale instruments).

A fret rocker is an ideal tool to pinpoint that elusive high fret that has been giving you trouble and causing your guitar to buzz.  The five sides are precision cut from 5mm steel and then HAND ground and lapped to a flatness of 0.001mm in a meter.  This is flatter in fact than most commercial straight edges and guaranteed with the Crimson Guitars seal of quality and durability.

With a hard wearing, tactile black satin finish, which makes it much easier to see any gaps when you are using this tool, and gives the tool a textured surface, reducing the risk of dropping the tool on your guitar.

Each side of the five-sided straight edge is a different length and fits neatly over 3 of the frets of your guitar.  If it rocks then the middle fret is high and needs to be dressed using our fret levelling or spot levelling files.

Product dimensions: (Longest to shortest sides)

  • 100mm / 3.9 inches
  • 75mm /  3 inches
  • 50mm / 2 inches
  • 33mm / 1.3 inches
  • 20mm / 0.8 inches


  • 3mm / 0.1 inch

See our YouTube channel for more videos on how to get the most out of your new Crimson Guitars tool as well as a myriad of guitar building tutorials and demo videos.

We ship Worldwide, no exception!


Additional information

Weight 0.15 kg

1 review for Fret Rocker for Guitar, Bass and now Mandolin and Ukelele

  1. Rated 5 out of 5


    Must have tool. Cheaper and better made than that american company. Heavy and precise with a great finish. The improvement of an additional facet sets it apart, especially the closer to the pickups you get.

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