1/4" shank carbide-tipped router bits (canoe bits). Used for making flute and bead edges on 1/4" thick wood strips to form curved surfaces.
Safety note: these bits should be used only in a router table equipped with a fence and not used free hand.
The SHED Comox Valley Tool Library
https://www.theshedcv.com/
Courtenayhttps://www.theshedcv.com/
Canada