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StewMac Rosette Router Base

StewMac Rosette Router Base

StewMac Rosette Router Base

Item # 0703
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StewMac Rosette Router Base

About This Item

Cut perfectly concentric and repeatable rosettes in guitars and ukuleles—now easier and faster than ever before!

The simplicity lies in the Rosette Router Base's clear plexi plate with a spiral pattern of index holes. Insert a pin into one of the holes, and the router works as a compass, rotating around the pin and cutting a precise circle. Each of the 49 holes will change the diameter of the corresponding rosette it cuts by 1/16".

There are no measurements to remember, no extra dials to fidget with, and no lengthy setup times. You'll plunge cut rosette and inlay channels faster and more accurately than you ever thought possible. Our thanks to luthier Jon Dale of Jupiter Ukulele, who inspired this amazing tool!

Cut soundholes and rosette diameters from 2-1/8" to 5" (54mm to 127mm).

Sturdy, compact, and adjustable
It's very simple to set the precision depth adjustment, then plunge and raise the bit exactly that amount. Each turn of the knurled micro depth stop gives approximately 1/32" of adjustment, to a maximum depth of one inch.

The ball grips give you excellent control for freehand routing and easy operation of the plunge feature. The built in LED light bar gives you a fully lighted view of your work. There's even a built-in nozzle for attaching a Mini Air Pump to continuously blow away the dust—you'll rout inlay cavities more precisely, for a better fit requiring less filler.

Installation is easy
Simply unscrew the threaded plastic collar on the nose of the Dremel, and screw on the Precision Router Base. Its 3/4-12 thread fits:

WARNING: Cancer and Reproductive Harm -


Product Instructions

StewMac Rosette Router Base Instructions

Cuts soundholes and rosette channels that are clean, accurate and repeatable. For guitars and ukuleles.

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  • 4.50 average rating from 2 reviews
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Verified Buyer

Overall this tool is well designed. However it required some work before I could use it. The pivot holes were all too small for the pin. Had to carefully ream each one out.
The battery light is a bit painful to use, it’s meant for a push bike, so it functions that aren’t required, like strobe flashing and reduced output settings. These functions are accessed with the power button so instead of turning it off, you end up with it flashing or half on. Would be better a light with on/off.
Apart from those few things it’s a good tool and should save me lots of time.


Great for non concentric rosettes


I use this jig for my non concentric rosettes (see pic).
1- You can cut the rosette cavity using two pivot holes (This is the easy part)
2- Where this jig really comes into its own is that you can use the numbered 1/16 incremented holes to perfectly cut the rosette itself so it fits perfectly into the cavity (with room for purflings either side).
Before this jig, I was making the non concentric rosette then hand fitting it like an inlay- Thankfully, I don't have to do that any more!
Thanks Jon Dale!