1Combining Square: Combination of 12 inch stainless steel woodworking ruler and heavy duty aluminum protractor with both inch and mm scales, ensuring durability while providing accurate measurements. 2Accurate Scales: This combination square ruler adopts precise calibration scale, clear and wear resistant, and can directly read the angle of the oblique cutting saw, improving the efficiency of processing. 3Measuring Range: This tool has ruler and angle measuring functions, which can measure angles ranging from 0 to 180 degrees, measure lengths ranging from 0 to 30cm, and accurately draw lines where needed. 4Multiple Usages: This protractor supports center locating and quick scribing, locked in the desired position through knurled nut, used for setting slopes, drawing radial lines, measuring and marking angles. 5Fine Workmanship: With exquisite workmanship, this woodworking measuring ruler is lightweight and durable, ensuring easy sliding and secure locking, and can be used in various woodworking projects. 1 xT Shaped Ruler