- Clear 0-180 degree scale with easy-to-read markings for precise angle identification; measures interior and exterior angles accurately, making it ideal for geometry assignments and carpentry layouts. - Adjustable rotating arm that locks securely in place; enables easy measurement and transfer of angles for woodworking projects, construction tasks, and classroom geometry work. - Compact and lightweight design; slim profile fits into toolboxes, backpacks, or pencil cases; portable for school, job sites, or home workshops. - High visibility markings with clear numerals; quick reference reduces mistakes and speeds up drafting or angle finding tasks. - Use case: in woodworking, transfer and reproduce a precise cut angle on boards, or verify miters and bevels against plans. - Use case: on construction sites, transfer blueprint angles to on-site marks for framing, layout, or component placement. - Use case: in geometry class or drafting, quickly check and verify angles in drawings or student solutions to improve accuracy and understanding.