High-Precision Multifunctional Measurement This 200 mm multifunctional angle measuring set combines a mechanical protractor, digital protractor, caliper, and angle gauge in one tool. Made from durable carbon steel, it ensures accurate and reliable measurements for professional machining, woodworking, architecture, and engineering tasks. Accurate and Reliable Mechanical vernier protractor: ±0.1° accuracy Digital electronic protractor: ±0.05° accuracy with 0.01° resolution Scratch-resistant, wear-resistant carbon steel ruler ensures long-term durability without deformation Versatile Functions Angle Measurement: 0–180° expandable to 360°, ideal for slopes, tapers, and inclined planes Length/Depth Measurement: 0–200 mm caliper function for precise dimensional checks Digital Display: High-resolution LCD screen with degree/radian switch, data hold, and zeroing function for easy reading Wide Range of Applications Machining: Part assembly, form angle checking, and precision layout Woodworking: Chamfer angle measurement, mortise and tenon joint calibration Architecture & Engineering: Slope measurement, steel structure assembly, and construction layout Portable and Efficient Combines multiple measurement tools in one device, saving space and tooling costs while providing high accuracy for both professional and DIY projects.