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Decorative Glue Joint adds 60% more glue surface while using less stock.
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Fitfinder Wave Reversible Glue Joint Bit (1/2" Shank)
Fitfinder Wave Reversible Glue Joint Bit (1/2" Shank)
Fitfinder Wave Reversible Glue Joint Bit (1/2" Shank)
or buy separately
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FITFINDER
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ONE PROFILE. BOTH HALVES.
The FitFinder Wave Reversible Glue Joint Bit cuts both mating halves of a self-aligning wave joint — and the patented FitFinder Center Platform pairs with the 1/2 Gauge to dial in the setup right the first time. Parts lock in line under clamping pressure with 60% more glue surface than a butt joint, giving up just 0.100" of material per cut. Stronger, straighter, and better looking — from cutting boards to doors to stairs.
The FITFINDER was conceived while founder and inventor, Henry Wang, was developing the Dado Stop. While the Dado Stop solved the problem of cutting the width of a dado, setting the dado's depth for half-laps still proved challenging. Henry realized that the solution was already there — from a Greek mathematician who lived over 2 millennia ago — Pythagoras. He applied this simple principle of geometry to a common woodworking process, and the FITFINDER was born.
Three directions of force.
Three directions of force provide essential stability for superior precision, safety, and control.
- Downward pressure stabilizes work piece on a flat surface.
- Inward pressure against the fence virtually eliminates kickback.
- Forward pressure feeds stock consistently through the cut to eliminate burning and blade marks.
Virtually eliminates kickback on table saws.
Kickback occurs when the workpiece strays from the fence and gets pinched between the saw blade and the fence. The rear teeth of the blade grab the workpiece, turning it into a dangerous projectile. The only way to avoid kickback is to maintain control of your workpiece through the entire cut.
The Grr-ripper+™ provides downward and inward pressure, keeping both sides of the cut parallel to the blade. This prevents the workpiece from straying from the rip fence, virtually eliminating kickback.
Create your own clamp tracks.
With MatchFit, you're not confined to pre-set clamp positions. Carve out your custom dovetail tracks on any wooden surface, enhancing your hold-down capabilities where you need them most. The Dovetail Track System gives you all the functionality of T-track, in less time and at a fraction of the cost.
Seamless dovetail integration: All MatchFit clamps slide into any 1/2" x 14º dovetail groove, transforming your setup into a unified clamping haven for unmatched efficiency.
Step 1: The right height the first time.
The Center Platform pairs with the FitFinder 1/2 Gauge to center the cutter on your stock, and the Fence Boss setup ring registers your fence fast.
The 1/4" shank bit can mill the wave profile in stock up to 3/4" (19mm) thick, while the1/2" shank bit works up to 1-1/4" (32mm).
Step 2: Set the fence to the bit.
Set the router table fence flush with the setup ring on the bit. Hold a straight edge across the throat opening and move the fence until the straight edge contacts the setup ring at the top of the Wave Bit.
Align all your stock with the color and grain as you want it to glue up. Mark aline across the top face of the parts to keep them oriented during cutting and glue up.
Step 3: Cut both sides of the joint with one setup.
Set the router to 12,000 rpm and mill all the edges to be glued. Mill the first part with the mark facing up, the second part with the mark down, the third up, etc. to maintain your grain choices.
Flip the parts so the marks made earlier are all on top, apply a light coat of glue to each joint and clamp them together. The wave profile will keep the faces of all the parts flat as you clamp them.
Step 4: Clamp strong stable joints with 60% more glue surface.
The Wave Bit makes it easy to create everything from cutting boards to stair treads, to any sort of panel you may need, strengthening your glue joint sand keeping your glue ups flat.
The bit only removes about 0.10" (2.5mm) from each joint so the cut is easy to make and saves material.
Step 5: Turn glue lines into design lines.
The Decorative Wave profile makes the joint part of the look. Laminate contrasting species and every glue line becomes a flowing wave pattern — serving boards, trivets, stands, and risers that show off the joinery instead of hiding it.
Use it around your whole shop.
Features.
Fitfinder Wave Reversible Glue Joint Bit (1/2" Shank)
Frequently Bought Together
FITFINDER 1/2 Gauge
FITFINDER 1/2 Gauge
FITFINDER 1/2 Gauge Upgrade Kit
FITFINDER 1/2 Gauge Upgrade Kit
FITFINDER Lock Miter Bit
FITFINDER Lock Miter Bit
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GRR-RIPPER 200AIR 3D Pushblock
GRR-RIPPER 200AIR 3D Pushblock
What people are saying.
Great for long stock.
Woodworking's SAFEST Push Block Just Got Better
Ingenious.
I still have all my fingers.
GRR-RIPPER Super Fan
Customer Reviews.
Got questions?
What makes a glue joint bit "reversible"?
One bit, one setup, both halves of the joint. Cut the first board, flip the mating board, and cut again — the symmetric wave profile nests the two together perfectly, with no second bit and no second setup to drift.
How does the wave keep my glue-up aligned?
The interlocking profile registers the boards to each other, so parts can't slide out of line under clamping pressure. Cutting boards, doors, stair parts, wide panels — they clamp up flush and stay that way.
What does the FitFinder Center Platform actually do?
It's the patented reference machined into the bit that pairs with the FitFinder 1/2 Gauge to center the profile on your stock — the right setup the first time, instead of a scrap pile of test joints.
What stock thickness does it handle?
From 1/4" (6mm) up to 1-1/4" (32mm) thick.
Is it actually stronger than a plain glue-up?
The wave gives you 60% more glue surface than a butt joint — and a better-looking joint line than tongue and groove, with a wave that shows off at the ends of your glue-ups.
How much material do I lose per joint?
Just 0.100" (2.5mm) — versus the typical 3/16" to 1/4" other glue joints eat. Across a wide panel, that's real wood saved.
Which size do I need?
Two ways to buy it: the large bit has the Fence Boss — a positioning surface milled into the bit body that sets your router table fence fast and accurately — while the 3/4" bit carries a sealed bearing that takes the wave joint onto curved parts. Available in 1/2" and 1/4" shanks.
Can it do more than glue joints?
Yes — run it as a decorative edge profile, or cut wave surfaces for creative work. The joint is the day job; the profile is the play.
Wave bit video
FitFinder Wave Bit in action (Short)
Specifications.
Models
Parts
Bit with Manual
Parts
Parts
Router
Router
Router
For use with: FitFinder; Router Table, Router · 1/2" shank
Wave profile removes 2.5 mm per pass; pairs with FITFINDER 1/2 Gauge .
For use with: FitFinder; Router Table, Router · 1/2" shank
Wave profile removes 2.5 mm per pass; pairs with FITFINDER 1/2 Gauge .
For use with: FitFinder; Router Table, Router · 1/4" shank
Top-mounted ball bearing enables template routing.
MB-025-0750WV / MB-050-1250WV
MB-050-1250WV
MB-025-0750WV
Designed the USA. Made in Taiwan.
Designed the USA. Made in Taiwan.
Designed the USA. Made in Taiwan.
Our Story
Family-Owned & Operated
Established 2001.
For beginners and pros alike, Microjig is reimagining an ancient craft and changing the way you work with wood.
Build your projects with more protection, more precision, and more passion. Work safer. Work smarter.
Designed in the USA by Woodworkers
Protecting Users in 37 Countries and Counting
1% Donated toNon-Profits andCharities
It all started in a garage workshop...
Henry was working on an intricate project and was challenged with cutting thin strips on a table saw. His frustration with traditional methods sparked one of the most innovative woodworking tools to come out in decades.
After countless hours and prototypes, the Grr-ripper was born. Henry has continued to innovate, and Microjig now offers multiple unique product lines all over the world.
WOOD Innovate Award
WOOD Innovate Award
Rated 5/5
Rated 4.8/5
Best for Table Saw Safety
#1 Best Overall Push Block
Best High-end Push Block
Best Multifunctional Push Block
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