Features • Stainl Steel Construction - Crafted from high-quality stainl steel, this tool is resistant to wear and tear, ensuring longevity and reliability for all your woodworking projects • Precision Engraved Scale - The scale is machine-engraved for clarity, making it easy to read measurements accurately, even in low light conditions, enhancing your precision in every task • Versatile Multi-Function Keys - Equipped with On/Off, clear, data hold, and unit conversion keys, this tool provides a seaml measuring experience tailored to your specific needs • Accurate Angle Measurement - Capable of measuring both inner and outer angles, this tool is designed to deliver readings, making it ideal for various woodworking applications • Convenient Locking Knob - The locking knob allows you to secure the angle at any position, giving you the dom to work hands- while maintaining accuracy in your measurements Features: 1、The product is made of stainl steel, which is not easy to and has a long service life. 2、The scale is engraved by a precision machine. The figures are very clear and easy to read. 3、Multi-function Key Function: On/Off key clear key, data hold key, ° / '' conversion key. 4、 Profionally measure the inner and outer angles and angles of objects. betweenbr> 5、With a locking knob to facilitate the locking angle at any position. Specification: Item Type: Digital Display Angle Ruler Material: Stainl Steel Measuring Range: 0-360° Optional Specification: 200mm; 300mm; 500mm Reading Value: 0.05° Accuracy Error: Plus or minus 0.3° Power: 3V (CR2032 × 1) (Not Included) Key Function: On/Off key clear key, data hold key, degree change key. Package List: 1 x Digital Display Angle Ruler Package List 1 x Digital Display Angle Ruler