[Excellent Function] The pipe center finder helps users accurately locate the center of a pipe or cylindrical object. It uses visual indicators and measurements to determine the precise center point, assisting with tasks such as drilling, welding, or installing fixtures on pipes. [Wide Application] This tool measures pipes from 1-1/2 inch to 6 inch in diameter. It can be used to set center lines, determine angles and marks for butt-ins, locate points inside pipes or tanks, align keyways, and calculate inclinations. Ideal for pipefitters and welders, it improves positioning efficiency and saves time and effort. [Easy to Use] 1. Adjust the hexagonal nut using the included screwdriver. 2. Place the pipe marking center tool on the pipe and position it to achieve the desired angle. (Ensure the dial is set and the green indicator is centered and level.) 3. Push the center column down to the fixed point position. 4. Tap with a hammer to create a mark on the pipe. [Durable and Sturdy Material] Made from flexible, heat-resistant materials and high-quality metal, this pipe center finder withstands heavy use and delivers long-lasting performance. [Adjustable Dial Bubble Protractor] This magnetic protractor features an adjustable dial bubble level (DSL), allowing you to adjust the center column to your preferred position. Color: Black + Red Material: Iron Package Contents: 1 x Pipe Center Finder Note: Light reflection and differences in display screens may cause slight variations in color between the image and the actual item. Measurement may vary by +/- 1-3 cm.