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Bird's-Mouth Joinery Bits™ - Woodworking
Bird's-Mouth Joinery Bits™ - Woodworking
Bird's-Mouth Joinery Bits™ - Woodworking
Bird's-Mouth Joinery Bits™ - Woodworking
Historically used in the construction of masts and booms for wooden boats, the bird's-mouth joint is straightforward to make, stronger than a traditional miter and, with nesting joints, easier to glue up without shifting.

With these three cutters, it is a simple matter to make 6, 8, 12 or 16 sided hollow columns, as well as straight or tapered multi-sided planters, bowls, etc., all of which can be left multi-faceted or planed / sanded round. Generally, more sections are required for larger-diameter assemblies to keep the wall thickness to a minimum, and reduce the amount of material to be removed when rounding.

Designed to produce flush joints with material up to 7/8" thick. Thicker material can be used, but will require some dressing after glue-up. Holder included with each bit.

For better safety, these bits should be used only in a router table equipped with a fence and not used free hand.

Bird's-Mouth Joinery Bits™
Additional views   Instruction sheet
Dimensions
Sides
Diameter
Depth
Shank
A.
16J40.56
6 or 12
1-5/8"
7/8"
1/2"
$38.40
Add to cart
B.
16J40.58
8
1-1/2"
7/8"
1/2"
$38.40
Add to cart
C.
16J40.66
16
1-1/2"
7/8"
1/2"
$38.40
Add to cart

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