Template Tool Protractor Instrument Measuring Arm Ruler 180 Degree Woodworking Ruler

1. Measuring range: 0-180 degrees
2. Measurement accuracy: 1 degree
3. Material: ABS + Copper
4. Size: 15.5 X9cm
5. Weight: 30g
6. Function: draw radial lines, set oblique angles, shift angles, and easily measure length and depth