Straight mortising bits deliver clean, precise cuts ideal for creating mortises, dados, and grooves in hardwood, softwood, and composite panels. Their straight flute design ensures smooth sidewalls and efficient chip removal, helping woodworkers achieve tight-fitting joints with minimal sanding or cleanup. These bits reduce production time in cabinetry and furniture builds while supporting consistent, professional-quality results. What is a straight mortising bit used for? It cuts straight, flat-bottomed channels or recesses, typically for joinery in woodworking and cabinetmaking projects.