General description This Drill Press Mortiser Attachment is a multifunctional tool designed for woodworking, furniture making, and various DIY projects that require square holes. It is compatible with clamping diameters ranging from 1.5 to 2.2 inches, making it versatile for different drilling applications. Technical specifications Material: Pure copper and durable metal Clamping diameter range: 1.5 to 2.2 inches Angle cuts: Adjustable from 45 to 90 degrees Installation Easy to install with a base featuring an angle reading function Provides maximum support for any drilling motion Usage Ideal for drilling square holes in wood and other materials Compatible with bench drills and hand drills Allows for straight or angled drilling with precision