YoPo Metal Ruler Square Tube to Round Ruler Square Steel 90° Bend Arc Angle Marker DIY Pipe Bending Guide

Size selection: There are two sizes of 20-65mm and 20-80mm. The tool can accommodate various square tube sizes and is suitable for different needs. With a unique design that allows for front and back drawing, users can get accurate results from multiple angles, increasing productivity. Made of high quality metal with high precision and long service life. The ruler has clear scale marks, even beginners can use the ruler to easily mark accurate angles and radians. Square tube rounded corner drawing ruler. Specifications: 20-65mm 20-80mm. Material: Iron. Size: 23.588cm/28610cm. Quantity: 1 piece. Features: Size selection: There are two sizes of 20-65mm and 20-80mm. The tool can accommodate various square tube sizes and is suitable for different needs. With a unique design that allows for front and back drawing, users can get accurate results from multiple angles, increasing productivity. Made of high quality metal with high precision and long service life. The ruler has clear scale ma