With their ability to make accurate, durable and repeatable joints, these Domino joiners go far beyond the capabilities of a biscuit joiner or any other joining method available. Designed to fit precisely into the mortise created by the tool, the Domino tenons are rotation proof, have a large gluing surface and are stronger than biscuits or dowels. When used in combination with a dust extractor, mortises are clean and ready for glue.