A luthier router bit is a specialized cutting tool used in the craft of guitar and stringed instrument making. It attaches to a router and allows for precise shaping, trimming, and carving of wood components essential to instrument construction. Luthiers commonly use these bits for tasks like routing pickup cavities, control pockets, neck pockets, and binding channels. Some bits are designed for flush trimming body shapes using templates, while others are tailored for delicate edge work or inlay routing.

Because instrument building demands high accuracy and clean cuts, luthier router bits are often chosen for their sharpness, bearing-guided control, and compatibility with fine hardwoods. Whether you're shaping the body of an electric guitar or cutting channels for decorative binding, these bits are indispensable in achieving professional, repeatable results.

Our WL-1220-19 set includes 19 different bearings. Each change in bearings adjusts the cut by .010 when you need a precision fit. Cutter is 1″ Diameter x 5/8″ Kerf with 1/4″ Shank. Two flute carbide tipped. Bearings range from .500 to .880 for binding channels from .250 to .060. Bearings for this bit are all 3/16″ ID.

Amana's 49342 is a 15mm (19/32″) Dia three flute down shear carbide tipped router bit with 11.5mm (7/16″) Kerf on a 1/4″ shank with five included bearings. All bearings are 4mm ID.

Amana's 49346 is a 20mm (51/64″) Dia three flute down shear carbide tipped router bit with 13.5mm (17/32″) Kerf on a 1/4″ shank with five included bearings. All bearings are 4mm ID.

LUTHIER BINDING ROUTER BIT SET

$20.00 ~~$139.00~~

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QUESTIONS & ANSWERS

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Are the cutting edges ground on a 5 or 6 degree downcut to reduce tear out?

No. It was made to the specs of our largest consumer and dealer of this set who felt that this would limit the bit's use.
What does the ID diameter of the bearing need to be for your 1220LB binding router cutter ? Also do you have a 59/64 ( .9219 ) OD bearing that will fit the cutter? Thank you

Bearings for this bit are 3/16" ID. The closest to what you are looking for would be 83037, 3/16" x 7/8". We have a metric bearing, 83181, which is 5mm x 22mm, but do not know if this would work well.
What are the 19 bearings sizes in the set?

Bearings range from .500 to .880 for binding channels from .250 to .060.

Very nice set of bearings

Covers every increment I need. Already bound the first guitar. no tear-out. don't forget the downhill cuts first.

Great binding router!

Thanks for the very prompt service. This router set is the perfect tool for making crisp clean binding channels on your acoustic guitar build. It cuts like butter and gets the job done right quick.

Fits the going out of business LMI bearings

Great too, great for routing guitar bindings, and with LMI going out of business you can pick up the router bit bearing set for a good price, but no bit. Thus I found this fits exactly!

Thanks

Perfect

Awesome!

luthier binding channel cutter

The cutter is all I bought and it is sharp and cuts well. I didn't want the entire bearing set. I have been wondering if it would be possible to buy just the 3 largest bearings of a set