【Function】: Drawing compasses can be used for repeated measurements or for drawing arcs and circles, ideal for woodworking, decorative design, industrial drawing, and as a professional carpenter's compass for metalwork or leather goods, etc. Premium Material】: The woodworking compass is made of aluminum alloy and will not break due to bending or rust. It is more durable and stronger than plastic compasses. 【Adjustable】: The spacing of the drawing tool's characters is adjustable. You can set the required distance. The total length of the circular compass when unstretched is 164 mm. The maximum diameter that can be drawn after stretching is between 100 and 254.2 mm. 【Dual Scale】: The woodworking compass has dual metric and imperial scales for professional drawing. Easy to Use: Simply find the pivot point in the center of your circle or within the circle itself, then adjust the radius. You can draw circles of various sizes as needed. This woodworking compass is a professional compass for woodworking, metalworking, or leatherwork.