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A biscuit joiner (or sometimes plate joiner) is a woodworking tool used to join two pieces of wood together. A biscuit joiner uses a small circular saw blade to cut a crescent-shaped hole (called the mouth) in the opposite edges of two pieces of wood or wood composite panels.
Similarly, you may ask, is a biscuit joiner worth it?
Biscuits don't really add much strength. They are more for alignment, where the dowels will add a good deal of strength. When done correctly, a biscuit joint is at least as strong as a similar size mortise and tenon joint, and decidedly stronger than a dowel joint.”
Subsequently, one may also ask, how do you use a wood biscuit joiner?
Cut Matching Slots into both Pieces of Wood, Join and Clamp Use the biscuit joiner to cut slots in the end of the top piece of wood. Turn the joiner to a vertical position, and cut matching slots in the bottom piece of wood. Assemble with biscuits and a small amount of wood glue.
Dowel Strength Dowel joinery is stronger than screw joinery. The increased glue surface caused by the glue deeply penetrating the wood gives the dowel more holding power. Screws will easily strip out in these materials, while dowels will not strip when the doweled joint is allowed to set up with glue.