How do you mark off a 5 hole flange?

To mark off a 5-hole flange, start by drawing a circle with a compass or a scribe to represent the flange diameter. Divide the circle into five equal sections using a protractor or by marking angles of 72 degrees (360°/5). From each division point, draw radial lines to the center to indicate hole locations. Finally, mark the desired hole diameter at each intersection point and ensure all markings are accurate before drilling.