- Carpenter Arc Drawing Ruler
- by High quality aluminum alloy Made from，corrosion resistant and durable.
- Both metric and British scale for easy adjustment.
- Adjustable radius, high precision, suitable for professional drawing, to meet your various drawing needs.
- This IS a NEW design of woodworking arc drawing ruler, beautiful color, careful design, is your helper in the work
- Product Instructions: The sliding piece is micro adjustable to the exact radius desired. The silver colored knob on the top when loosened lets the tool extend. Tightening the knob locks the tool to a specific length. The silver knob on the end is a pointed centering piece that screws into the small hole at the opposite end to act as a center for the radius swing. Once adjusted, parallel radii can be marked at 1 inch intervals without readjusting.
