[Excellent Function]: The pipe center finder is designed to assist users in accurately locating the center of a pipe or cylindrical object. This tool utilizes visual cues and measurements to determine the precise center point of the pipe, aiding in tasks such as drilling, welding, or installing fixtures onto the pipe. [Wide Application]: This tool is used to measure pipes from 1-1/2 inches to 6 inches in diameter. It can be used to set center lines, determine angles and marks for butt joints, locate points inside pipes or tanks, align keyways, and calculate inclinations. Ideal for pipefitters and welders, it improves positioning accuracy and efficiency. [Easy to Use]: 1. Adjust the hexagonal nut with the included screwdriver. 2. Place the pipe marking center tool on the pipe and rotate to achieve the desired angle. (When the dial is centered within the green indicator, the green indicator must be level.) 3. Push the center column down to the fixed position. 4. Tap gently with a hammer to mark the center point on the pipe. [Durable Material]: Made from high-quality metal, this pipe center finder is built for durability and long-term performance. [Adjustable Dial Bubble Protractor]: This magnetic protractor angle finder features an adjustable dial bubble protractor (DSL). The center column can be adjusted to the desired position. Color: Black + Red. Material: Iron. Package Contents: 1 x Pipe Center Finder. Note: Light reflection and display differences may cause slight color variation between the image and the actual product. Measurement tolerance: ±1–3 cm.