StewMac Plunge Router Base
€240
Price: $239.99
(as of Sep 23, 2025 01:27:13 UTC – Details)
Our sturdy plunge router base turns your Rotary Tool into a compact plunge router—perfect for inlays, routing saddle slots, cleaning fret slots and more. The advanced design gives an unobstructed view of the cutting action.
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.
Designed for stringed instrument work
- Excellent control
- Clear visibility
- Maneuverable for accurate freehand work
- Works with our Saddle Slotting Jig
Sturdy, compact, and adjustable: You can plunge-rout an inlay cavity that’s precisely compensated for the thickness of the pearl and glue, for minimum sanding later.
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 Rotary Tool, and screw on the base.
Plunge Router Base fits these rotary tools with a 3/4-12 threaded plastic collar:
- 100, 4000, 400XPR, Professional, MultiPro™ and most corded models made since 1986
- Black & Decker Wizard™ and RTX™
Our sturdy base turns your rotary tool into a compact plunge router
Designed for stringed instrument work, the StewMac Plunge Router Base gives you excellent control and clear visibility
Perfect for inlays, routing saddle slots, cleaning fret slots and more
It’s simple to set the precision depth adjustment, then plunge and raise the bit exactly that amount
Features ball grips that give you excellent control for freehand routing and a built-in LED light bar that gives you a fully lighted view of your work
Customers say
Customers find the router base to be finely machined and well-made, with very precise adjustments that make it easy to use. The tool is solid and works well, with one customer noting it’s built “like a tank.” They appreciate its functionality for detailed work, with one mentioning it’s excellent for precise inlay work, and another highlighting its ability to gauge depth of cut accurately. While customers consider it well worth the money, opinions on value are mixed.
David L. Cline –
Very Nice
Dremel fits very well and this will certainly make doing smaller, detailed work a lot easier and with more control. It is pricey but considering the quality of the product well worth it.
pamibe –
Extremely well made – Glad I did not build my own –
I was going to make my own out of Aluminum – this one is Stainless Steel and Brass – Very high quality and well worth the money – with the two holes for attachments I was able to mount it on me 6×12 clear full router base plate in no time – even the screws for the full size router fit this base – this is so solid and strong it does no budge when depth is set – very precise adjustments can be made –
Compel Radio – Review –
Stew Mac quality… at Stew Mac price.
Like many tools from Stew Mac, this base is over priced. Itâs good quality, but can be wonky when adjusting. We used ours on a Dremel 300 and immediately wished we had paid the premium and got the plunge base.The Stew Mac bases are made to easily use accessories like an edge guide and circle jigs. This model has a small inlet for an air tube. This allows for dust to be blown away from your workpiece similar to the way scroll saws do. I havenât tried this feature, but seeing it, I now believe all bases should have something like it as a standard feature.BOTTOM LIBE: If you want Stew Mac quality and features, youâll have to pay a premium. If you only need a Dremel style base for occasional use, WEN has one for much lower price.
J. Wudwerk –
Quality machining, smart design.
Qualify the 5 stars and headline: Just received this router base in good condition, and on time. Mechanism very well packed as one would expect of a precision instrument. I intend to use free hand to inlay various designs with various materials. The steel base is smartly design for maximum visibility over the cutting area. Fit and finish appears to be top shelf. My only two concerns: 1. Would I have better off with the plunge base also made by StewMac? 2. Am I going to have trouble with the router “carriage” skewing when I adjust depth of cut, and will the base lay flat on the substrate being cut? The first part can be fixed by machining a quality gauge block, or using one commercially available. Bottom line: If this thing can cut precision inlays on high quality string instruments, it’s bound to be good enough for the wood butcher in me!
James Power –
It’s a really nice router base
It was broke when I got it. I think ups dropped something heavy on it. I contacted stewmac and they had my replacement part in the mail that day. They even sent an extra. Awesome customer support.This base is solid and precise. The only problem i had was where the screwholes on the bottom are needed to be sanded and polished.. but I’m using this on super softer plastic so, most people probably wouldn’t even notice this.
Steve Wood –
Built “like a tank”, easy to use. The only router base, that I know of, for rotary tools
The only thing you have to watch for is the two adjustment on each side can be slightly off from each other. Which can make the bit slightly angled. You have to measure each side from the base to be sure it is the same. I use a machinists ruler. I’m sure calipers would work too. You also have to measure the depth of the bit.BTW, I use a Craftsman rotary tool and it fits just fine.As far as I know this is the only metal, precision router base made for rotary tools. StewMac is a luthier (stringed instrument makers) supply company. I congratulate them on making this available. There is a round, black, plastic “thing” here on Amazon and on the Dremel website. It’s some kind of rough cut tool for construction work for use on easily cut materials like drywall. It cannot be used in any way, shape or form as a traditional router base. I know. I tried. Then, fortunately, I found this tool buried way down in an Amazon search. Even though my keywords fit it almost exactly. What’s up with that Amazon? Are you trying to influence what I buy with a biased search engine? Naw, ol’ Jeffy boy would never do that, ha! There is also one of these available directly from China. It’s $20 cheaper but you would have to wait weeks for delivery. Reviews were lower for the China tool than the StewMac, which is also made in China. Perhaps StewMac exerts some sort of quality control?
Robert –
Great little tool
It is easy to get the bit off center. Might have to purchase a little bitty level to set on it to make sure it’s perfectly on center. Not a big problem. All in all it’s really great, did exactly what I wanted it to do, and I can see alot of uses for it in the future. If I ever need to I will buy another one in the future. But if I take care of it I see it lasting for a VERY long time. Thanks you guys.
Don’t know how the batteries are. Never received them –
Nice
Nice