Hot Sale Metal Material square Hole Drill Bit for Wood of Power Tools 6-25mm Size Customization

Square Hole Drill Bit is specially designed for drilling square holes in wood using a mortising machine or drill press with a mortising attachment. It consists of an outer square chisel and an inner rotating drill bit. The inner bit removes the material while the outer chisel cuts the corners, creating clean and precise square holes. Ideal for woodworking, cabinet making, and mortise-and-tenon joints.