General Tools 47 Dovetail Marker Jig is designed specifically for precise and easy-to-make dovetail joints. With multiple slopes including 1:5, 1:6, 1:7, and 1:8, the dovetail marker allows for both hardwood and softwood cuts of various sizes. The tool also includes a 1/16” scale along both the outside and inside edges to ensure all measurements are made correctly. Its durable aluminum body provides a clean edge for straight lines every time.